Chapter 9

Having wounded one of these animals in the lateral part of the belly, we held him with lines fixed to the spears; he then began to describe a very narrow curve, and irritated by the cries of the people that were in the boats, ran off with a moderate velocity. To the first boat, which held the lines just mentioned, the other boats were fastened, and it was a rather strange emotion to feel ourselves towed by the monster for more than three hours with a velocity that proved to be two miles per hour. One of the boats was filled with water. At last the animal was tired by the great loss of blood, and the boats assembled to haul in the lines and tow the shark on shore.

With much difficulty the nine boats towed the animal alongside the Vettor Pisani to have him hoisted on board, but it was impossible on account of his colossal dimensions. But as it was high water we went toward a sand beach with the animal, and we had him safely stranded at night.

With much care were inspected the mouth, the nostrils, the ears, and all the body, but no parasite was found. The eyes were taken out and prepared for histological study. The set of teeth was all covered by a membrane that surrounded internally the lips; the teeth are very little, and almost in a rudimental state. The mouth, instead of opening in the inferior part of the head, as in common sharks, was at the extremity of the head; the jaws having the same bend.

Cutting the animal on one side of the backbone we met (1) a compact layer of white fat 20 centimeters deep; (2) the cartilaginous ribs covered with blood vessels; (3) a stratum of flabby, stringy, white muscle, 60 centimeters high, apparently in adipose degeneracy; (4) the stomach.

By each side of the backbone he had three chamferings, or flutings, that were distinguished by inflected interstices. The color of the back was brown with yellow spots that became close and small toward the head, so as to be like marble spots. The length of the shark was 8.90 m. from the mouth to the _pinna caudalis_ extremity, the greatest circumference 6.50 m., and 2.50 m. the main diameter (the outline of the two projections is made for giving other dimensions).

The natives call the species _Tintoreva_, and the most aged of the village had only once before fished such an animal, but smaller. While the animal was on board we saw several _Remora_ about a foot long drop from his mouth; it was proved that these fish lived fixed to the palate, and one of them was pulled off and kept in the zoological collection of the ship.

The Vettor Pisani has up the present visited Gibraltar, Cape Verde Islands, Pernambuco, Rio Janeiro, Monte Video, Valparaiso, many ports of Peru, Guayaquil, Panama, Galapagos Islands, and all the collections were up to this sent to the Zoological Station at Naples to be studied by the naturalists. By this time the ship left Callao for Honolulu, Manila, Hong Kong, and, as the Challenger had not crossed the Pacific Ocean in these directions, we made several soundings and deep-sea thermometrical measurements from Callao to Honolulu. Soundings are made with a steel wire (Thompson system) and a sounding-rod invented by J. Palumbo, captain of the ship. The thermometer employed is a Negretti and Zambra deep-sea thermometer, improved by Captain Maguaghi (director of the Italian R.N. Hydrographic Office).

With the thermometer wire has always been sent down a tow-net which opens and closes automatically, also invented by Captain Palumbo. This tow-net has brought up some little animals that I think are unknown.

G. CHIERCHIA.

Honolulu July 1.

The shark captured by the Vettor Pisani in the Gulf of Panama is _Rhinodon typicus_, probably the most gigantic fish in existence. Mr. Swinburne Ward, formerly commissioner of the Seychelles, has informed me that it attains to a length of 50 feet or more, which statement was afterward confirmed by Prof. E.P. Wright. Originally described by Sir A. Smith from a single specimen which was killed in the neighborhood of Cape Town, this species proved to be of not uncommon occurrence in the Seychelles Archipelago, where it is known by the name of "Chagrin." Quite recently Mr. Haly reported the capture of a specimen on the coast of Ceylon. Like other large sharks (_Carcharodon rondeletii, Selache maxima_, etc.), Rhinodon has a wide geographical range, and the fact of its occurrence on the Pacific coast of America, previously indicated by two sources, appears now to be fully established. T. Gill in 1865 described a large shark known in the Gulf of California by the name of "Tiburon ballenas" or whale-shark, as a distinct genus--_Micristodus punctatus_--which, in my opinion, is the same fish. And finally, Prof. W. Nation examined in 1878 a specimen captured at Callao. Of this specimen we possess in the British Museum a portion of the dental plate. The teeth differ in no respect from those of a Seychelles Chagrin; they are conical, sharply pointed, recurved, with the base of attachment swollen. Making no more than due allowance for such variations in the descriptions by different observers as are unavoidable in accounts of huge creatures examined by some in a fresh, by others in a preserved, state, we find the principal characteristics identical in all these accounts, viz.: the form of the body, head, and snout, relative measurements, position of mouth, nostrils, and eyes, dentition, peculiar ridges on the side of the trunk and tail, coloration, etc. I have only to add that this shark is stated to be of mild disposition and quite harmless. Indeed, the minute size of its teeth has led to the belief in the Seychelles that it is a herbivorous fish, which, however, is not probable.

ALBERT GUNTHER.

Natural History Museum, _July 30_.

* * * * *

THE GREELY ARCTIC EXPEDITION.

Some account has been given of the American Meteorological Expedition, commanded by Lieutenant, now Major, Greely, of the United States Army, in the farthest north channels, beyond Smith Sound, that part of the Arctic regions where the British Polar expedition, in May, 1876, penetrated to within four hundred geographical miles of the North Pole. The American expedition, in 1883, succeeded in getting four miles beyond, this being effected by a sledge party traveling over the snow from Fort Conger, the name they had given to their huts erected on the western shore near Discovery Cove, in Lady Franklin Sound. The farthest point reached, on May 18, was in latitude 83 deg. 24 min. N.; longitude 40 deg. 46 min. W., on the Greenland coast. The sledge party was commanded by Lieutenant Lockwood, and the following particulars are supplied by Sergeant Brainerd, who accompanied Lieutenant Lockwood on the expedition. During their sojourn in the Arctic regions the men were allowed to grow the full beard, except under the mouth, where it was clipped short. They wore knitted mittens, and over these heavy seal-skin mittens were drawn, connected by a tanned seal-skin string that passed over the neck, to hold them when the hands were slipped out. Large tanned leather pockets were fastened outside the jackets, and in very severe weather jerseys were sometimes worn over the jackets for greater protection against the intense cold. On the sledge journeys the dogs were harnessed in a fan-shaped group to the traces, and were never run tandem. In traveling, the men were accustomed to hold on to the back of the sledge, never going in front of the team, and often took off their heavy overcoats and threw them on the load. When taking observations with the sextant, Lieutenant Lockwood generally reclined on the snow, while Sergeant Brainerd called time and made notes, as shown in our illustration. When further progress northward was barred by open water, and the party almost miraculously escaped drifting into the Polar sea, Lieutenant Lockwood erected, at the highest point of latitude reached by civilized man, a pyramidal-shaped cache of stones, six feet square at the base, and eight or nine feet high. In a little chamber about a foot square half-way to the apex, and extending to the center of the pile, he placed a self-recording spirit thermometer, a small tin cylinder containing records of the expedition, and then sealed up the aperture with a closely fitting stone. The cache was surmounted with a small American flag made by Mrs. Greely, but there were only thirteen stars, the number of the old revolutionary flag. From the summit of Lockwood Island, the scene presented in our illustration, 2,000 feet above the sea, Lieutenant Lockwood was unable to make out any land to the north or the northwest. "The awful panorama of the Arctic which their elevation spread out before them made a profound impression upon the explorers. The exultation which was natural to the achievement which they found they had accomplished was tempered by the reflections inspired by the sublime desolation of that stern and silent coast and the menace of its unbroken solitude. Beyond to the eastward was the interminable defiance of the unexplored coast--black, cold, and repellent. Below them lay the Arctic Ocean, buried beneath frozen chaos. No words can describe the confusion of this sea of ice--the hopeless asperity of it, the weariness of its torn and tortured surface. Only at the remote horizon did distance and the fallen snow mitigate its roughness and soften its outlines; and beyond it, in the yet unattainable recesses of the great circle, they looked toward the Pole itself. It was a wonderful sight, never to be forgotten, and in some degree a realization of the picture that astronomers conjure to themselves when the moon is nearly full, and they look down into the great plain which is called the Ocean of Storms, and watch the shadows of sterile and airless peaks follow a slow procession across its silver surface."--_Illustrated London News_.

* * * * *

THE NILE EXPEDITION.

As soon as the authorities had finally made up their minds to send a flotilla of boats to Cairo for the relief of Khartoum, not a moment was lost in issuing orders to the different shipbuilding contractors for the completion, with the utmost dispatch, of the 400 "whaler-gigs" for service on the Nile. They are light-looking boats, built of white pine, and weigh each about 920 lb., that is without the gear, and are supposed to carry four tons of provisions, ammunition, and camp appliances, the food being sufficient for 100 days. The crew will number twelve men, soldiers and sailors, the former rowing, while the latter (two) will attend the helm. Each boat will be fitted with two lug sails, which can be worked reefed, so as to permit an awning to be fitted underneath for protection to the men from the sun. As is well known, the wind blows for two or three months alternately up and down the Nile, and the authorities expect the flotilla will have the advantage of a fair wind astern for four or five days at the least. On approaching the Cataracts, the boats will be transported on wooden rollers over the sand to the next level for relaunching.

* * * * *

THE PROPER TIME FOR CUTTING TIMBER.

_To the Editor of the Oregonian:_

Believing that any ideas relating to this matter will be of some interest to your readers in this heavily-timbered region, I therefore propose giving you my opinion and conclusions arrived at after having experimented upon the cutting and use of timber for various purposes for a number of years here upon the Pacific coast.

This, we are all well aware, is a very important question, and one very difficult to answer, since it requires observation and experiment through a course of many years to arrive at any definite conclusion; and it is a question too upon which even at the present day there exists a great difference of opinion among men who, being engaged in the lumber business, are thereby the better qualified to form an opinion.

Many articles have been published in the various papers of the country upon this question for the past thirty years, but in all cases an opinion only has been given, which, at the present day, such is the advance and higher development of the intellectual faculties of man, that a mere opinion upon any question without sufficient and substantial reasons to back it is of little value.

My object in writing this is not simply to give an opinion, but how and the methods used by which I adopted such conclusions, as well also as the reasons why timber is more durable and better when cut at a certain season of the year than when cut at any other.

In the course of my investigations of this question for the past thirty years, I have asked the opinion of a great many persons who have been engaged in the lumber business in various States of the Union, from Maine to Wisconsin, and they all agree upon one point, viz., that the winter time is the proper time for cutting timber, although none has ever been able to give a reason why, only the fact that such was the case, and therefore drawing the inference that it was the proper time when timber should be cut; and so it is, for one reason only, however, and that is the convenience for handling or moving timber upon the snow and ice.

It was while engaged in the business of mining in the mountains of California in early days, and having occasion to work often among timber, in removing stumps, etc., it was while so engaged that I noticed one peculiar fact, which was this--that the stumps of some trees which had been cut but two or three years had decayed, while others of the same size and variety of pine which had been cut the same year were as sound and firm as when first cut. This seemed strange to me, and I found upon inquiry of old lumbermen who had worked among timber all their lives, that it was strange to them also, and they could offer no explanation; and it was the investigation of this singular fact that led me to experiment further upon the problem of cutting timber.

It was not, however, until many years after, and when engaged in clearing land for farming purposes, that I made the discovery why some stumps should decay sooner than others of the same size and variety, even when cut a few months afterward.

I had occasion to clear several acres of land which was covered with a very dense growth of young pines from two to six inches in diameter (this work for certain reasons is usually done in the winter). The young trees, not being suitable for fuel, are thrown into piles and burned upon the ground. Such land, therefore, on account of the stumps is very difficult to plow, as the stumps do not decay for three or four years, while most of the larger ones remain sound even longer.

But, for the purpose of experimenting, I cleaned a few acres of ground in the spring, cutting them in May and June. I trimmed the poles, leaving them upon the ground, and when seasoned hauled them to the house for fuel, and found that for cooking or heating purposes they were almost equal to oak; and it was my practice for many years afterward to cut these young pines in May or June for winter fuel.

I found also that the stumps, instead of remaining sound for any length of time, decayed so quickly that they could all be plowed up the following spring.

From which facts I draw these conclusions: that if in the cutting of timber the main object is to preserve the stumps, cut your trees in the fall or winter; but if the value of the timber is any consideration, cut your trees in the spring after the sap has ascended the tree, but before any growth has taken place or new wood has been formed.

I experimented for many years also in the cutting of timber for fencing, fence posts, etc., and with the same results. Those which were cut in the spring and set after being seasoned were the most durable, such timber being much lighter, tougher, and in all respects better for all variety of purposes.

Having given some little idea of the manner in which I experimented, and the conclusions arrived at as to the proper time when timber should be cut, I now propose to give what are, in my opinion, the reasons why timber cut in early summer is much better, being lighter, tougher and more durable than if cut at any other time. Therefore, in order to do this it is necessary first to explain the nature and value of the sap and the growth of a tree.

We find it to be the general opinion at present, as it perhaps has always been among lumbermen and those who work among timber, that the sap of a tree is an evil which must be avoided if possible, for it is this which causes decay and destroys the life and good qualities of all wood when allowed to remain in it for an unusual length of time, but that this is a mistaken idea I will endeavor to show, not that the decay is due to the sap, but to the time when the tree was felled.

We find by experiment in evaporating a quantity of sap of the pine, that it is water holding in solution a substance of a gummy nature, being composed of albumen and other elementary matters, which is deposited within the pores of the wood from the new growth of the tree; that these substances in solution, which constitute the sap, and which promote the growth of the tree, should have a tendency to cause decay of the wood is an impossibility. The injury results from the water only, and the improper time of felling the tree.

Of the process in which the sap promotes the growth of the tree, the scientist informs us that it is extracted from the soil, and flows up through the pores of the wood of the tree, where it is deposited upon the fiber, and by a peculiar process of nature the albumen forms new cells, which in process of formation crowd and push out from the center, thus constituting the growth of the tree in all directions from center to circumference. Consequently this new growth of wood, being composed principally of albumen, is of a soft, spongy nature, and under the proper conditions will decay very rapidly, which can be easily demonstrated by experiment.

Hence, we must infer that the proper time for felling the tree is when the conditions are such that the rapid decay of a new growth of wood is impossible; and this I have found by experiment to be in early summer, after the sap has ascended the tree, but before any new growth of wood has been formed. The new growth of the previous season is now well matured, has become hard and firm, and will not decay. On the contrary, the tree being cut when such new growth has not well matured, decay soon takes place, and the value of the timber is destroyed. The effect of this cutting and use of timber under the wrong conditions can be seen all around us. In the timbers of the bridges, in the trestlework and ties of railroads and in the piling of the wharves will be found portions showing rapid decay, while other portions are yet firm and in sound condition.

Much more might be said in the explanation of this subject, but not wishing to extend the subject to an improper length, I will close. I would, however, say in conclusion that persons who have the opportunities and the inclination can verify the truth of a portion, at least, of what I have stated, in a simple manner and in a short time; for instance, by cutting two or three young fir or spruce saplings, say about six inches in diameter, mark them when cut, and also mark the stumps by driving pegs marked to correspond with the trees. Continue this monthly for the space of about one year, and note the difference in the wood, which should be left out and exposed to the weather until seasoned.

C.W. HASKINS.

* * * * *

RAISING FERNS FROM SPORES.

This plan, of which I give a sketch, has been in use by myself for many years, and most successfully. I have at various times given it to growers, but still I hear of difficulties. Procure a good sized bell-glass and an earthenware pan without any holes for drainage. Prepare a number of small pots, all filled for sowing, place them inside the pan, and fit the glass over them, so that it takes all in easily. Take these filled small pots out of the pan, place them on the ground, and well water them with boiling water to destroy all animal and vegetable life, and allow them to get perfectly cold; use a fine rose. Then taking each small pot separately, sow the spores on the surface and label them; do this with the whole number, and then place them in the pan under the bell-glass. This had better be done in a room, so that nothing foreign can grow inside. Having arranged the pots and placed the glass over them, and which should fit down upon the pan with ease, take a clean sponge, and tearing it up pack the pieces round the outside of the glass, and touching the inner side of the pan all round. Water this with cold water, so that the sponge is saturated. Do this whenever required, and always use water that has been boiled. At the end of six weeks or so the prothallus will perhaps appear, certainly in a week or two more; perhaps from unforeseen circumstances not for three months. Slowly these will begin to show themselves as young ferns, and most interesting it is to watch the results. As the ferns are gradually increasing in size pass a small piece of slate under the edge of the bell-glass to admit air, and do this by very careful degrees, allowing more and more air to reach them. Never water overhead until the seedlings are acclimated and have perfect form as ferns, and even then water at the edges of the pots. In due time carefully prick out, and the task so interesting to watch is performed.--_The Garden_.

* * * * *

THE LIFE HISTORY OF VAUCHERIA.

[Footnote: Read before the San Francisco Microscopical Society, August 13, and furnished for publication in the _Press_.]

By A.H. BRECKENFELD.

Nearly a century ago, Vaucher, the celebrated Genevan botanist, described a fresh water filamentous alga which he named _Ectosperma geminata_, with a correctness that appears truly remarkable when the imperfect means of observation at his command are taken into consideration. His pupil, De Candolle, who afterward became so eminent a worker in the same field, when preparing his "Flora of France," in 1805, proposed the name of _Vaucheria_ for the genus, in commemoration of the meritorious work of its first investigator. On March 12, 1826, Unger made the first recorded observation of the formation and liberation of the terminal or non-sexual spores of this plant. Hassall, the able English botanist, made it the subject of extended study while preparing his fine work entitled "A History of the British Fresh Water Algæ," published in 1845. He has given us a very graphic description of the phenomenon first observed by Unger. In 1856 Pringsheim described the true sexual propagation by oospores, with such minuteness and accuracy that our knowledge of the plant can scarcely be said to have essentially increased since that time.