VOLUME VIII, SLICE V

Dinard to Dodsworth

ARTICLES IN THIS SLICE:

DINARD DISSECTION DINDIGUL DISSENTER KARL WILHELM DINDORF DISSOCIATION D'INDY, PAUL-MARIE-VINCENT DISSOLUTION DINEIR DISTAFF DINGELSTEDT, FRANZ VON DISTILLATION DINGHY DISTRACTION DINGLE DISTRESS DINGO DISTRIBUTION DINGWALL DISTRICT DINKA DISTYLE DINKELSBÜHL DITHMARSCHEN DINNER DITHYRAMBIC POETRY DINOCRATES DITTERSBACH DINOFLAGELLATA DITTERSDORF, KARL DITTERS VON DINOTHERIUM DITTO DINWIDDIE, ROBERT DITTON, HUMPHRY DIO CASSIUS DIU DIOCESE DIURETICS DIO CHRYSOSTOM DIURNAL MOTION DIOCLETIAN DIVAN DIOCLETIAN, EDICT OF DIVER DIODATI, GIOVANNI DIVERS and DIVING APPARATUS DIODORUS CRONUS DIVES-SUR-MER DIODORUS SICULUS DIVIDE DIODOTUS DIVIDEND DIOGENES DIVIDIVI DIOGENES APOLLONIATES DIVINATION DIOGENES LAËRTIUS DIVINING-ROD DIOGENIANUS DIVISION DIOGNETUS, EPISTLE TO DIVORCE DIOMEDES (Greek legend) DIWANIEH DIOMEDES (Latin grammarian) DIX, DOROTHEA LYNDE DION DIX, JOHN ADAMS DIONE DIXON, GEORGE DIONYSIA DIXON, HENRY HALL DIONYSIUS (pope) DIXON, RICHARD WATSON DIONYSIUS (tyrant of Syracuse) DIXON, WILLIAM HEPWORTH DIONYSIUS AREOPAGITICUS DIXON DIONYSIUS EXIGUUS DIZFUL DIONYSIUS HALICARNASSENSIS DJAKOVO DIONYSIUS PERIEGETES DLUGOSZ, JAN DIONYSIUS TELMAHARENSIS DMITRIEV, IVAN IVANOVICH DIONYSIUS THRAX DNIEPER DIONYSUS DNIESTER DIOPHANTUS DOAB DIOPSIDE DOANE, GEORGE WASHINGTON DIOPTASE DOBBS FERRY DIORITE DOBELL, SYDNEY THOMPSON DIP DÖBELN DIPHENYL DOBERAN DIPHILUS DÖBEREINER, JOHANN WOLFGANG DIPHTHERIA DOBREE, PETER PAUL DIPLODOCUS DÖBRENTEI, GABOR DIPLOMACY DOBRITCH DIPLOMATIC DOBRIZHOFFER, MARTIN DIPOENUS and SCYLLIS DOBROWSKY, JOSEPH DIPPEL, JOHANN KONRAD DOBRUDJA DIPSOMANIA DOBSINA DIPTERA DOBSON, HENRY AUSTIN DIPTERAL DOBSON, WILLIAM DIPTYCH DOCETAE DIR DOCHMIAC DIRCE DOCK DIRECT MOTION DOCK (botany) DIRECTORS DOCK (marine and river engineering) DIRECTORY DOCKET DIRGE DOCK WARRANT DIRK DOCKYARDS DIRSCHAU DOCTOR DISABILITY DOCTORS' COMMONS DISCHARGE DOCTRINAIRES DISCHARGING ARCH DOCUMENT DISCIPLE DODD, WILLIAM DISCIPLES OF CHRIST DODDER DISCLAIMER DODDRIDGE, PHILIP DISCOUNT DODDS, ALFRED AMÉDÉE DISCOVERY DODECAHEDRON DISCUS DODECASTYLE DISINFECTANTS DÖDERLEIN, JOHANN WILHELM LUDWIG DISMAL DODGE, THEODORE AYRAULT DISORDERLY HOUSE DODGSON, CHARLES LUTWIDGE DISPATCH DODO DISPENSATION DODONA DISPERSION DODS, MARCUS D'ISRAELI, ISAAC DODSLEY, ROBERT DISS DODSWORTH, ROGER

DINARD, a seaside town of north-western France, in the department of Ille-et-Vilaine. The town, which is the chief watering-place of Brittany, is situated on a rocky promontory at the mouth of the Rance opposite St Malo, which is about 1 m. distant. It is a favourite resort of English and Americans as well as of the French, its attractions being the beauty of its situation, the mildness of the climate and the good bathing. It has two casinos and numerous luxurious hotels and elegant villas. Together with the adjoining watering-place of St Enogat, Dinard has a population of 4882 (1906).

DINDIGUL, a town of British India, in the Madura district of Madras, 880 ft. above the sea, 40 m. from Madura by rail. Pop. (1901) 25,182. Dindigul has risen into importance as the centre of a trade in tobacco and manufacture of cigars, which are exported to England. There are two large European cigar factories here. The town has manufactures of silk, muslin and blankets, and an export trade in hides and cardamoms; and there is a large native Christian population, with two churches. The ancient fort, well preserved, stands on a rock rising 350 ft. above the town; this was formerly a position of great strategic importance, commanding passes into Madura from Coimbatore, and figured prominently in the military operations of the Mahrattas in the 17th and 18th centuries, and of Hyder Ali in 1755 seq., being thrice captured by the British (1767, 1783, 1790). After the two first captures it was restored to Hyder Ali under treaty; after the third it was ceded to the East India Company.

KARL WILHELM DINDORF (1802-1883), German classical scholar, was born at Leipzig on the 2nd of January 1802. From his earliest years he showed a strong taste for classical studies, and after completing F. Invernizi's edition of Aristophanes at an early age, and editing several grammarians and rhetoricians, was in 1828 appointed extraordinary professor of literary history in his native city. Disappointed at not obtaining the ordinary professorship when it became vacant in 1833, he resigned his post in the same year, and devoted himself entirely to study and literary work. His attention had at first been chiefly given to Athenaeus, whom he edited in 1827, and to the Greek dramatists, all of whom he edited separately and combined in his _Poetae scenici Graeci_ (1830 and later editions). He also wrote a work on the metres of the Greek dramatic poets, and compiled special lexicons to Aeschylus and Sophocles. He edited Procopius for Niebuhr's _Corpus_ of the Byzantine writers, and between 1846 and 1851 brought out at Oxford an important edition of Demosthenes; he also edited Lucian and Josephus for the Didot classics. His last important editorial labour was his _Eusebius of Caesarea_ (1867-1871). Much of his attention was occupied by the republication of Stephanus's _Thesaurus_ (Paris, 1831-1865), chiefly executed by him and his brother Ludwig, a work of prodigious labour and utility. His reputation suffered somewhat through the imposture practised upon him by the Greek Constantine Simonides, who succeeded in deceiving him by a fabricated fragment of the Greek historian Uranius. The book was printed, and a few copies had been circulated, when the forgery was discovered, just in time to prevent its being given to the world under the auspices of the university of Oxford. Shortly after the death of his brother, he lost all his property and his library by rash speculations. He died on the 1st of August 1883.

His brother LUDWIG (1805-1871) was born at Leipzig on the 3rd of January 1805, and died there on the 6th of September 1871. He never held any academical position, and led so secluded a life that many doubted his existence, and declared that he was a mere pseudonym. The important share which he took in the edition of the _Thesaurus_ is nevertheless authenticated by his own signature to his contributions. He also published valuable editions of Polybius, Dio Cassius and other Greek historians.

D'INDY, PAUL-MARIE-THÉODORE-VINCENT (1851- ), French musical composer, was born in Paris, on the 27th of March 1851. He studied composition and the organ at the Paris Conservatoire under César Franck, and obtained the grand prize offered by the city of Paris in 1885 with _Le Chant de la Cloche_, a dramatic legend after Schiller. His principal works, beside the above, are the symphonic trilogy _Wallenstein_, the symphonic works entitled _Saugefleurie_, _La Forêt enchantée_, _Istar_, _Symphonie sur un air montagnard français_; overture to _Anthony and Cleopatra_; _Ste Marie Magdeleine_, a cantata; _Attendez-moi sous l'orme_, a one-act opera; _Fervaal_, a musical drama in three acts. Vincent d'Indy is perhaps the most prominent among the disciples of César Franck. Imbued with very high aims, he was always guided by a lofty ideal, and few musicians have attained so complete a mastery over the art of instrumentation. His music, however, lacks simplicity, and can never become popular in the widest sense. His opera _Fervaal_, which is styled "action musicale", is constructed upon the system of _Leit-motifs_. Its legendary subject recalls both _Parsifal_ and _Tristan_, and the music is also suggestive of Wagnerian influence. D'Indy can scarcely be considered so typical a representative of modern French music as his juniors Alfred Bruneau, the composer of _Le Rêve_, _L'Attaque du moulin_, _Messidor_, or Gustave Charpentier, the author of _Louise_, who chose subjects of modern life for their operatic works.

DINEIR, a small town in Asia Minor, built amidst the ruins of Celaenae-Apamea, near the sources of the Maeander (Menderes). It is the terminus of the Smyrna-Aidin-Dineir railway. Pop. 1400. (See APAMEA.)

DINGELSTEDT, FRANZ VON (1814-1881), German poet and dramatist, was born at Halsdorf, in Hesse Cassel, on the 30th of June 1814. Having studied at the university of Marburg, he became in 1836 a master at the Lyceum in Cassel, from which he was transferred to Fulda in 1838. In 1839 he produced a novel, _Unter der Erde_, which obtained considerable success, and in 1841 published the book by which he is best remembered, the _Lieder eines kosmopolitischen Nachtwächters_. These poems, animated as they are by a spirit of bitter opposition to everything that savours of despotism, were an effective contribution to the political poetry of the day. The popularity of this book determined Dingelstedt to take up a literary career, and in 1841 he obtained an appointment on the staff of the _Augsburger allgemeine Zeitung_. In 1843, however, the satirist of German princes accepted, to the general surprise, the appointment of private librarian to the king of Württemberg, and in the same year he married the celebrated Bohemian opera singer, Jenny Lutzer. In 1845 he published a volume of poems, some of which, treating of modern life, possessed great literary rather than strictly poetical merit. A subsequent collection, published in 1852, attracted little attention. The success of his tragedy _Das Haus der Barneveldt_ (1850) obtained for him the position of intendant at the court theatre at Munich, where he soon became the centre of literary society. He incurred, however, the animosity of the Jesuit clique at the court, and in 1856 was suddenly dismissed on the most frivolous charges. A similar position was offered to him at Weimar through the influence of Liszt, and he remained there until 1867. His administration was most successful, and he especially distinguished himself by presenting all Shakespeare's historical plays upon the stage in an unbroken cycle. In 1867 he became director of the court opera house in Vienna, and in 1872 of the Hofburgtheater, a position he held until his death on the 15th of May 1881. Among his other works may be noticed an autobiographical sketch of his Munich career, entitled _Münchener Bilderbogen_ (1879), _Die Amazone_, an art novel of considerable merit (1869), translations of several of Shakespeare's comedies, and several writings dealing with questions of practical dramaturgy. He was ennobled in 1867 by the king of Bavaria and in 1876 was created _Freiherr_ by the emperor of Austria.

Dingelstedt's _Sämtliche Werke_ appeared in 12 vols. (1877-1878), but this edition is far from complete. On his life see, besides the autobiography mentioned above, J. Rodenberg, _Heimaterinnerungen an F. Dingelstedt_ (Berlin, 1882), and by the same author, _F. Dingelstedt, Blätter aus seinem Nachlass_ (2 vols., 1891). Also an essay by A. Stern in _Zur Literatur der Gegenwart_ (Leipzig, 1880).

DINGHY, or DINGEY (from the Hindu _d[=e]ng[=i]_ a small boat, the diminutive of _denga_, a sloop or coasting vessel), a boat of greatly varying size and shape, used on the rivers of India; the term is applied also, in certain districts, to a larger boat used for coasting purposes. The name was adopted by the merchantmen trading with India, and is now generally used to designate the small extra boat kept for general purposes on a man-of-war or merchant vessel, and also, on the Thames, for small pleasure boats built for one or two pairs of sculls.

DINGLE, a seaport and market town of county Kerry, Ireland, in the west parliamentary division, the terminus of the Tralee and Dingle railway. Pop. (1901) 1786. This may be considered the most westerly town in the United Kingdom unless Knightstown at Valencia Island be excepted; it lies on the south side of the northernmost of the great promontories which protrude into the Atlantic on the south-western coast of Ireland, on the fine natural harbour of Dingle Bay, in a wild hilly district abundant in relics of antiquity. The town, which is the centre of a considerable fishing industry, especially in mackerel, was in the 16th century of no little importance as a seaport; it had also a noted manufacture of linen. It was incorporated by Queen Elizabeth, and returned two members to the Irish parliament until the Union.

DINGO, a name applied apparently by Europeans to the warrigal, or native Australian dog, the Canis dingo of J. F. Blumenbach. The dingo is a stoutly-built, rather short-legged, sandy-coloured dog, intermediate in size between a jackal and a wolf, and measuring about 51 in. in total length, of which the tail takes up about eleven. In general appearance it is very like some of the pariah dogs of India and Egypt; and, except on distributional grounds, there is no reason for regarding it as specifically distinct from such breeds. Dingos, which are found both wild and tame, interbreed freely with European dogs introduced into the country, and it may be that the large amount of black on the back of many specimens may be the result of crossing of this nature.

The main point of interest connected with the dingo relates to its origin; that is to say, whether it is a member of the indigenous Australian fauna (among which it is the only large placental mammal), or whether it has been introduced into the country by man. There seems to be no doubt that fossilized remains of the dingo occur intermingled with those of the extinct Australian mammals, such as giant kangaroos, giant wombats and the still more gigantic _Diprotodon_. And since remains of man have apparently not yet been detected in these deposits, it has been thought by some naturalists that the dingo must be an indigenous species. This was the opinion of Sir Frederick McCoy, by whom the deposits in question were regarded as probably of Pliocene age. A similar view is adopted by D. Ogilvy in a _Catalogue of Australian Mammals_, published at Sydney in 1892; the writer going however one step further and expressing the belief that the dingo is the ancestor of all domesticated dogs. The latter contention cannot for a moment be sustained; and there are also strong arguments against the indigenous origin of the dingo. That the animal now occurs in a wild state is no argument whatever as to its being indigenous, seeing that a domesticated breed introduced by man into a new country abounding in game would almost certainly revert to the wild state. The apparent absence of human remains in the beds yielding dingo teeth and bones (which are almost certainly not older than the Pleistocene) is of only negative value, and liable to be upset by new discoveries. Then, again (as has been pointed out by R. I. Pocock in the first part of the _Kennel Encyclopaedia_, 1907), the absence of any really wild species of the typical group of the genus _Canis_ between Burma and Siam on the one hand and Australia on the other is a very strong argument against the dingo being indigenous, seeing that, whether brought by man or having travelled thither of its own accord, the dingo must have reached its present habitat by way of the Austro-Malay archipelago. If it had followed that route in the course of nature, it is inconceivable that it would not still be found on some portions of the route. On the supposition that the dingo was introduced by man, we have now fairly decisive evidence that the native Australian, in place of being (as formerly supposed) a member of the negro stock, is a low type of Caucasian allied to the Veddahs of Ceylon and the Toalas of Celebes. Consequently the Australian natives must be presumed to have reached the island-continent by way of Malaya; and if this be admitted, nothing is more likely than that they should have been accompanied by pariah dogs of the Indian type. Confirmation of this is afforded by the occurrence in the mountains of Java of a pariah-like dog which has reverted to an almost completely wild condition; and likewise by the fact that the old voyagers met with dogs more or less similar to the dingo in New Guinea, New Zealand and the Solomon and certain other of the smaller Pacific islands. On the whole, then, the most probable explanation of the case is that the dingo is an introduced species closely allied to the Indian pariah dog. Whether the latter represents a truly wild type now extinct, cannot be determined. If so, all pariahs should be classed with the Australian warrigal under the name of _Canis dingo_. If, on the other hand, pariahs, and consequently the dingo, cannot be separated specifically from the domesticated dogs of western Europe, then the dingo should be designated _Canis familiaris dingo_. (R. L.*)

DINGWALL, a royal and police burgh and county town of the shire of Ross and Cromarty, Scotland. Pop. (1901) 2519. It is situated near the head of Cromarty Firth where the valley of the Peffery unites with the alluvial lands at the mouth of the Conon, 18½ m. N.W. of Inverness by the Highland railway. Its name, derived from the Scandinavian _Thingvöllr_, "field or meeting-place of the _thing_," or local assembly, preserves the Norse origin of the town; its Gaelic designation is Inverpefferon, "the mouth of the Peffery." The 18th-century town house, and some remains of the ancient mansion of the once powerful earls of Ross still exist. There is also a public park. An obelisk, 57 ft. high, was erected over the grave of the 1st earl of Cromarty. The town belongs to the Wick district group of parliamentary burghs. It is a flourishing distributing centre and has an important corn market and auction marts. Some shipping is carried on at the harbour at the mouth of the Peffery, about a mile below the burgh. Branch lines of the Highland railway run to Strathpeffer and to Strome Ferry and Kyle of Lochalsh (for Skye). Alexander II. created Dingwall a royal borough in 1226, and its charter was renewed by James IV. On the top of Knockfarrel (Gaelic, _cnoc_, hill; _faire_, watch, or guard), a hill about 3 m. to the west, is a large and very complete vitrified fort with ramparts.

DINKA (called by the Arabs _Jange_), a widely spread negro people dwelling on the right bank of the White Nile to about 12° N., around the mouth of the Babr-el-Ghazal, along the right bank of that river and on the banks of the lower Sobat. Like the Shilluk, they were greatly harried from the north by Nuba-Arabic tribes, but remained comparatively free owing to the vast extent of their country, estimated to cover 40,000 sq. m., and their energy in defending themselves. They are a tall race with skins of almost blue black. The men wear practically no clothes, married women having a short apron, and unmarried girls a fringe of iron cones round the waist. They tattoo themselves with tribal marks, and extract the lower incisors; they also pierce the ears and lip for the attachment of ornaments, and wear a variety of feather, iron, ivory and brass ornaments. Nearly all shave the head, but some give the hair a reddish colour by moistening it with animal matter. Polygamy is general; some headmen have as many as thirty or more wives; but six is the average number. They are great cattle and sheep breeders; the men tend their beasts with great devotion, despising agriculture, which is left to the women; the cattle are called by means of drums. Save under stress of famine cattle are never killed for food, the people subsisting largely on durra. The Dinkas reverence the cow, and snakes, which they call "brothers." Their folklore recognizes a good and evil deity; one of the two wives of the good deity created man, and the dead go to live with him in a great park filled with animals of enormous size. The evil deity created cripples. The Dinka came, in 1899, under the control of the Sudan government, justice being administered as far as possible in accord with tribal custom. A compendium of Dinka laws was compiled by Captain H. D. E. O'Sullivan.

See G. A. Schweinfurth, _The Heart of Africa_ (1874); W. Junker, _Travels in Africa_, Eng. edit. (London, 1890-1892); _The Anglo-Egyptian Sudan_, edited by Count Gleichen (London, 1905).

DINKELSBÜHL, a town of Germany, in the kingdom of Bavaria, on the Wörnitz, 16 m. N. from Nördlingen, on the railway to Dombühl. Pop. 5000. It is an interesting medieval town, still surrounded by old walls and towers, and has an Evangelical and two Roman Catholic churches. Notable is the so-called _Deutsches Haus_, the ancestral home of the counts of Drechsel-Deufstetten, a fine specimen of the German renaissance style of wooden architecture. There are a Latin and industrial school, several benevolent institutions, and a monument to Christoph von Schmid (1768-1854), a writer of stories for the young. The inhabitants carry on the manufacture of brushes, gloves, stockings and gingerbread, and deal largely in cattle.

Fortified by the emperor Henry I., Dinkelsbühl received in 1305 the same municipal rights as Ulm, and obtained in 1351 the position of a free imperial city, which it retained till 1802, when it passed to Bavaria. Its municipal code, the _Dinkelsbuhler Recht_, published in 1536, and revised in 1738, contained a very extensive collection of public and private laws.

DINNER, the chief meal of the day, eaten either in the middle of the day, as was formerly the universal custom, or in the evening. The word "dine" comes through Fr. from Med. Lat. _disnare_, for _disjejunare_, to break one's fast (_jejunium_); it is, therefore, the same word as Fr. _déjeuner_, to breakfast, in modern France, to take the midday meal, _dîner_ being used for the later repast. The term "dinner-wagon," originally a movable table to hold dishes, is now used of a two-tier sideboard.

DINOCRATES, a great and original Greek architect, of the age of Alexander the Great. He tried to captivate the ambitious fancy of that king with a design for carving Mount Athos into a gigantic seated statue. This plan was not carried out, but Dinocrates designed for Alexander the plan of the new city of Alexandria, and constructed the vast funeral pyre of Hephaestion. Alexandria was, like Peiraeus and Rhodes (see HIPPODAMUS), built on a regular plan; the streets of most earlier towns being narrow and confused.

DINOFLAGELLATA, so called by O. Bütschli (= the CILIOFLAGELLATA of E. Claparide and H. Lachmann), a group of Protozoa, characterized as Mastigophora, provided with two flagella, the one anterior extended in locomotion, the other coiled round its base, or lying in a transverse groove. The body is bounded by a firm pellicle, often supplemented by an armour ("lorica") of cuticular cellulose plates, with usually a marked longitudinal groove from which the anterior flagellum springs, and an oblique or spiral transverse groove for the second flagellum. In _Polykrikos_ (fig. 2, 9) there are eight transverse grooves each with its flagellum. The armour-plates are often exquisitely sculptured, and may be produced into spines or perpendicular plates to give greater surface extension, as we find in other plankton organisms. The cortical plasma may protrude pseudopodia in the longitudinal groove; it contains trichocysts in several species, true nematocysts in _Polykrikos_. It contains chromatophores in many species, coloured by a mixed lipochrome pigment which appears to be distinct from diatomin. The endoplasm is ramified between alveoli; it contains a large nucleus (in _Polykrikos_ there are eight nuclei, accompanied by smaller, more numerous bodies regarded by O. Butschli as micro-nuclei). Besides the other spaces are definite rounded or oval vacuoles with a permanent pellicular wall termed by Schutt "pusules"; these open by a duct or ducts into the longitudinal groove. They enlarge and diminish, and are possibly excretory like the "contractile vacuoles" of other Protista; though it has been suggested that by their communication with the medium they subserve nutrition. Nutrition is of course holozoic or saprophytic in the colourless forms, holophytic in the coloured; but these divergent methods are exhibited by different species of the same genus, or even by individuals of one and the same species under different conditions. Binary fission has been widely observed, both in the active condition or after loss of the flagella: it differs from that of true Flagellates in not being longitudinal, but transverse or oblique (fig, 2, 2). Repeated fission (brood-formation) within a cyst has also been observed, as in _Pyrocystis_ and _Ceratium_; and possibly the chains of _Ceratium_ and other (fig. 2, 5 and 6) genera are due to the non-separation of the brood-cells. Conjugation of adults has been observed in several species, the most complete account being that of Zederbauer on _Ceratium hirundinella_ (marine): either mate puts forth a tube which meets and opens into that of the other (as in some species of _Chlamydomonas_ and Desmids); the two cell-bodies fuse in this tube, and encyst to form a resting zygospore. The Dinoflagellates are relatively large for Mastigophora, many attaining 50 µ (1/500") in length. The majority are marine; but some genera (_Ceratium_, _Peridinium_) include fresh-water species. Many are highly phosphorescent and some by their abundance colour the water of the sea or pool which they dwell in. Like so many coloured Protista, they frequently possess a pigmented "eye-spot" in which may be sunk a spheroidal refractive body ("lens").

The affinities of the Dinoflagellata are certainly with those Cryptomonadine Flagellates which possess two unequal flagella; the zoospores or young of the Cystoflagellates are practically colourless Dinoflagellates.

1. _Gymnodiniaceae_: body naked, or with a simple cellulose or gelatinous envelope; both grooves present. _Pyrocystis_ (Murray), often encysted, spherical or crescentic, becoming free within cyst wall, and escaping whole or after brood-divisions as a form like _Gymnodinium_; _Gymnodinium_ (Stein); _Hemidinium_ (Stein); _Pouchetia_ (Schütt) (fig. 2, 7) with complex eye-spot; to this group we may refer _Polykrikos_ (Bütschli) (fig. 2, 9), with its metameric transverse grooves and flagella.

2. _Prorocentraceae_ (Schütt) ( = the Adinida of Bergh); body surrounded by a firm shell of two valves without a girdle band; transverse groove absent; transverse flagellum coiled round base of longitudinal. _Exuviaeella_ (Cienk.) (fig. 2, 3); _Prorocentrum_ (Ehrb.) (fig. 2, 4).

3. _Peridiniaceae_ (Schütt); body with a shell of plates, a girdle band along the transverse groove, in which the transverse flagellum lies. Genera, _Peridinium_ (Ehrb.) (fig. 1), fresh-water and marine; _Ceratium_ (Schrank) (fig. 2, 5, 6), fresh-water and marine; _Citharistes_ (Stein); _Ornithoceras_ (Claparède and Lachmann) (fig. 2, 1).

LITERATURE.--R. S. Bergh, "Der Organismusder Cilioflagellaten," _Morphol. Jahrbuch_, vii. (1881); F. von Stein, _Organismus der Infusionsthiere_, Abth. 3, 2. Hälfte; _Die Naturgeschichte der arthrodelen Flagellaten_ (1883); Bütschli, "Mastigophora" (in Bronn's _Thierreich_, i. Abth. 2), 1881-1887; G. Pouchet, various observations on Dinoflagellates, _Journal de l'anatomie et de la physiologie_ (1885, 1887, 1891); F. Schütt, "Die Peridineen der Plankton Expedition" (_Ergebnisse d. Pl. Exed._ i. Th. vol. iv. 1895); and "Peridiniales" in Engler and Prantl's _Pflanzenfamilien_, vol. i. Abt. 2 b. (1896); Zederbauer, _Berichte d. deutschen botanischen Gesellschaft_, vol. xx. (1900); Delage and Hérouard, _Traité de zoologie concrète_, vol. i. _La Cellule et les protozoaires_ (1896). (M. HA.)

DINOTHERIUM, an extinct mammal, fossil remains of which occur in the Miocene beds of France, Germany, Greece and Northern India. These consist chiefly of teeth and the bones of the head. An entire skull, obtained from the Lower Pliocene beds of Eppelsheim, Hesse-Darmstadt, in 1836, measured 4½ ft. in length and 3 ft. in breadth, and indicates an animal exceeding the elephant in size. The upper jaw is apparently destitute of incisor and canine teeth, but possesses five molars on each side, with a corresponding number in the jaw beneath. The most remarkable feature, however, consists in the front part of the lower jaw being bent downwards and bearing two tusk-like incisors also directed downwards and backwards. _Dinotherium_ is a member of the group Proboscidea, of the line of descent of the elephants.

DINWIDDIE, ROBERT (1693-1770), English colonial governor of Virginia, was born near Glasgow, Scotland, in 1693. From the position of customs clerk in Bermuda, which he held in 1727-1738, he was promoted to be surveyor-general of the customs "of the southern ports of the continent of America," as a reward for having exposed the corruption in the West Indian customs service. In 1743 he was commissioned to examine into the customs service in the Barbadoes and exposed similar corruption there. In 1751-1758 he was lieutenant-governor of Virginia, first as the deputy of Lord Albemarle and then, from July 1756 to January 1758, as deputy for Lord Loudon. He was energetic in the discharge of his duties, but aroused much animosity among the colonists by his zeal in looking after the royal quit-rents, and by exacting heavy fees for the issue of land-patents. It was his chief concern to prevent the French from building in the Ohio Valley a chain of forts connecting their settlements in the north with those on the Gulf of Mexico; and in the autumn of 1753 he sent George Washington to Fort Le Boeuf, a newly established French post at what is now Waterford, Pennsylvania, with a message demanding the withdrawal of the French from English territory. As the French refused to comply, Dinwiddie secured from the reluctant Virginia assembly a grant of £10,000 and in the spring of 1754 he sent Washington with an armed force toward the forks of the Ohio river "to prevent the intentions of the French in settling those lands." In the latter part of May Washington encountered a French force at a spot called Great Meadows, near the Youghiogheny river, in what is now south-western Pennsylvania, and a skirmish followed which precipitated the French and Indian War. Dinwiddie was especially active at this time in urging the co-operation of the colonies against the French in the Ohio Valley; but none of the other governors, except William Shirley of Massachusetts, was then much concerned about the western frontier, and he could accomplish very little. His appeals to the home government, however, resulted in the sending of General Edward Braddock to Virginia with two regiments of regular troops; and at Braddock's call Dinwiddie and the governors of Massachusetts, New York, Pennsylvania and Maryland met at Alexandria, Virginia, in April 1755, and planned the initial operations of the war. Dinwiddie's administration was marked by a constant wrangle with the assembly over money matters; and its obstinate resistance to military appropriations caused him in 1754 and 1755 to urge the home government to secure an act of parliament compelling the colonies to raise money for their protection. In January 1758 he left Virginia and lived in England until his death on the 27th of July 1770 at Clifton, Bristol.

_The Official Records of Robert Dinwiddie, Lieutenant-Governor of Virginia_ (1751-1758), published in two volumes, at Richmond, Va., in 1883-1884, by the Virginia Historical Society, and edited by R. A. Brock, are of great value for the political history of the colonies in this period.

DIO CASSIUS (more correctly CASSIUS DIO), COCCEIANUS (c. A.D. 150-235), Roman historian, was born at Nicaea in Bithynia. His father was Cassius Apronianus, governor of Dalmatia and Cilicia under Marcus Aurelius, and on his mother's side he was the grandson of Dio Chrysostom, who had assumed the surname of Cocceianus in honour of his patron the emperor Cocceius Nerva. After his father's death, Dio Cassius left Cilicia for Rome (180) and became a member of the senate. During the reign of Commodus, Dio practised as an advocate at the Roman bar, and held the offices of aedile and quaestor. He was raised to the praetorship by Pertinax (193), but did not assume office till the reign of Septimius Severus, with whom he was for a long time on the most intimate footing. By Macrinus he was entrusted with the administration of Pergamum and Smyrna; and on his return to Rome he was raised to the consulship about 220. After this he obtained the proconsulship of Africa, and again on his return was sent as legate successively to Dalmatia and Pannonia. He was raised a second time to the consulship by Alexander Severus, in 229; but on the plea of ill health soon afterwards retired to Nicaea, where he died. Before writing his history of Rome ([Greek: Rhômaika] or [Greek: Rhômaikê Historia]), Dio Cassius had dedicated to the emperor Severus an account of various dreams and prodigies which had presaged his elevation to the throne (perhaps the [Greek: Enodia] attributed to Dio by Suidas), and had also written a biography of his fellow-countryman Arrian. The history of Rome, which consisted of eighty books,--and, after the example of Livy, was divided into decades,--began with the landing of Aeneas in Italy, and was continued as far as the reign of Alexander Severus (222-235). Of this great work we possess books 36-60, containing the history of events from 68 B.C.-A.D. 47; books 36 and 55-60 are imperfect. We also have part of 35 and 36-80 in the epitome of John Xiphilinus, an 11th-century Byzantine monk. For the earlier period the loss of Dio's work is partly supplied by the history of Zonaras, who followed him closely. Numerous fragments are also contained in the excerpts of Constantine Porphyrogenitus. Dio's work is a most important authority for the history of the last years of the republic and the early empire. His industry was great and the various important offices he held afforded him ample opportunities for historical investigation. His style, though marred by Latinisms, is clearer than that of his model Thucydides, and his narrative shows the hand of the practised soldier and politician; the language is correct and free from affectation. But he displays a superstitious regard for miracles and prophecies; he has nothing to say against the arbitrary acts of the emperors, which he seems to take as a matter of course; and his work, although far more than a mere compilation, is not remarkable for impartiality, vigour of judgment or critical historical faculty.

The best edition with notes is that of H. S. Reimar (1750-1752), new ed. by F. G. Sturz (1824-1836); text by I. Melber (1890 foll.), with account of previous editions, and U. P. Boissevain (1895-1901); translation by H. B. Foster (Troy, New York, 1905 foll.), with full bibliography; see also W. Christ, _Geschichte der griechischen Litteratur_ (1898), p. 675; E. Schwartz in Pauly-Wissowa's _Realencyclopadie_, iii. pt. 2 (1899); C. Wachsmuth, _Einleitung in das Studium der alten Geschichte_ (1895).

DIOCESE (formed on Fr. _diocèse_, in place of the Eng. form _diocess_--current until the 19th century--from Lat. _dioecesis_, med. Lat. variant _diocesis_, from Gr. [Greek: dioikêsis], "housekeeping," "administration," [Greek: dioikein], "to keep house," "to govern"), the sphere of a bishop's jurisdiction. In this, its sole modern sense, the word diocese (_dioecesis_) has only been regularly used since the 9th century, though isolated instances of such use occur so early as the 3rd, what is now known as a diocese having been till then usually called a _parochia_ (parish). The Greek word [Greek: dioikêsis], from meaning "administration," came to be applied to the territorial circumscription in which administration was exercised. It was thus first applied e.g. to the three districts of Cibyra, Apamea and Synnada, which were added to Cilicia in Cicero's time (between 56 and 50 B.C.). The word is here equivalent to "assize-districts" (Tyrrell and Purser's edition of Cicero _Epist. ad fam._ iii. 8. 4; xiii. 67; cf. Strabo xiii. 628-629). But in the reorganization of the empire, begun by Diocletian and completed by Constantine, the word "diocese" acquired a more important meaning, the empire being divided into twelve dioceses, of which the largest--Oriens--embraced sixteen provinces, and the smallest--Britain--four (see ROME: _Ancient History_; and W. T. Arnold, _Roman Provincial Administration_, pp. 187, 194-196, which gives a list of the dioceses and their subdivisions). The organization of the Christian church in the Roman empire following very closely the lines of the civil administration (see CHURCH HISTORY), the word diocese, in its ecclesiastical sense, was at first applied to the sphere of jurisdiction, not of a bishop, but of a metropolitan.[1] Thus Anastasius Bibliothecarius (d. c. 886), in his life of Pope Dionysius, says that he assigned churches to the presbyters, and established dioceses (_parochiae_) and provinces (_dioeceses_). The word, however, survived in its general sense of "office" or "administration," and it was even used during the middle ages for "parish" (see Du Cange, _Glossarium_, s. "Dioecesis" 2).

The practice, under the Roman empire, of making the areas of ecclesiastical administration very exactly coincide with those of the civil administration, was continued in the organization of the church beyond the borders of the empire, and many dioceses to this day preserve the limits of long vanished political divisions. The process is well illustrated in the case of English bishoprics. But this practice was based on convenience, not principle; and the limits of the dioceses, once fixed, did not usually change with the changing political boundaries. Thus Hincmar, archbishop of Reims, complains that not only his metropolitanate (_dioecesis_) but his bishopric (_parochia_) is divided between two realms under two kings; and this inconvenient overlapping of jurisdictions remained, in fact, very common in Europe until the readjustments of national boundaries by the territorial settlements of the 19th century. In principle, however, the subdivision of a diocese, in the event of the work becoming too heavy for one bishop, was very early admitted, e.g. by the first council at Lugo in Spain (569), which erected Lugo into a metropolitanate, the consequent division of diocese being confirmed by the king of the second council, held in 572. Another reason for dividing a diocese, and establishing a new see, has been recognized by the church as duly existing "if the sovereign should think fit to endow some principal village or town with the rank and privileges of a city" (Bingham, lib. xvii. c. 5). But there are canons for the punishment of such as might induce the sovereign so to erect any town into a city, solely with the view of becoming bishop thereof. Nor could any diocese be divided without the consent of the primate.

In England an act of parliament is necessary for the creation of new dioceses. In the reign of Henry VIII. six new dioceses were thus created (under an act of 1539); but from that time onward until the 19th century they remained practically unchanged. The Ecclesiastical Commissioners