Part 12

MANUFACT'D AT MOUNT HOLLY N. J. ---------------------------------------------------------------------- "OLD RELIABLE." TO KNOW ALL about the =Best Pump= for Paper Makers, Tanners, Contractors, and for irrigation, send for illustrated pamphlet, 78 pages. HEALD, SISCO & CO., Baldwinsville, N. Y. ---------------------------------------------------------------------- =BOOKS=, Papers. Want Agents. Send stamp. L. L. FAIRCHILD, Rolling Prairie, Wis. ---------------------------------------------------------------------- =IT PAYS= to sell our Rubber Stamps and Novelties. Terms free. G. A. HARPER & BRO., Cleveland, O. ---------------------------------------------------------------------- DYSPEPSIA. BY DR. C. F. KUNZE. Symptoms. Appetite Diminished. Stomach Digestion much slower than Normal. Constipation. Symptoms in Children. Chronic Cases. Dyspepsia as caused by too much Food; by Indigestible Food; by General Derangement; by Altered Conditions of Innervation. Treatment. Nourishment should be Easily Digestible; taken Little at a Time; and Digested before more is taken. Necessity of Few and Plain Dishes. Treatment when Stomach is Overloaded. Aiding Gastric Juice. Treatment in Febrile Diseases. Contained in SCIENTIFIC AMERICAN SUPPLEMENT NO. =129.= Price 10 cents, To be had at this office and of all newsdealers. ---------------------------------------------------------------------- [Illustration]

=SHEPARD'S CELEBRATED=

$50 Screw Cutting Foot Lathe.

Foot and Power Lathes, Drill Presses, Scroll, Circular and Band Saws, Saw Attachments, Chucks, Mandrills, Twist Drills, Dogs, Calipers, etc. Send for catalogue of outfits for amateurs or artisans.

=H. L. SHEPARD & CO., 88, 90 & 92 Elm St., Cincinnati, Ohio.= ---------------------------------------------------------------------- =TO ADVERTISERS!= We will send free to all applicants who do any newspaper advertising, the THIRD EDITION of =AYER & SON'S MANUAL= =FOR ADVERTISERS.= 160 8vo. pp. More complete than any which have preceded it. Gives the names, circulation, and advertising rates of several thousand newspapers in the United States and Canada, and contains more information of value to an advertiser than can be found in any other publication. All lists have been carefully revised, and where practicable prices have been reduced. The special offers are numerous and unusually advantageous. Be sure to send for it before spending any money in newspaper advertising. Address =N. W. AYER & SON,= ADVERTISING AGENTS, Times Building, Philadelphia. ---------------------------------------------------------------------- =PORTLAND CEMENT,=

ROMAN & KEENE'S. For Walks, Cisterns, Foundations, Stables, Cellars, Bridges, Reservoirs, Breweries, etc.

Remit 10 cents for Practical Treatise on Cements.

S. L. MERCHANT & CO., 53 Broadway, New York. ---------------------------------------------------------------------- [Illustration]

=NORTH'S UNIVERSAL LATHE DOG. S. G. NORTH 347 North 4th Street, Philadelphia, Pa.= ---------------------------------------------------------------------- =MACHINISTS' TOOLS.= NEW AND IMPROVED PATTERNS.

Send for new illustrated catalogue.

Lathes, Planers, Drills, &c. =NEW HAVEN MANUFACTURING CO., New Haven, Conn.= ---------------------------------------------------------------------- POINTS OF A GOOD HORSE. BEING the Report of the Committee appointed by the New England Agricultural Society to decide upon Rules for Guidance of Judges of Horses. The Points of Excellence. Size, Color, Symmetry of Body, Head and Neck, Eye and Ear, Feet and Limbs, fully described. Speed at the Trot, and in Walking, Style and Action, etc., with the percentage allowed for each quality. The Standard Size and Speed for Matched Carriage Horses, Gents' Driving Horses, Family Horses, Park or Phæton Horses, etc. An excellent Guide in selecting animals. Contained in SCIENTIFIC AMERICAN SUPPLEMENT NO. =103=, price 10 cents. To be had at this office and of all newsdealers. ---------------------------------------------------------------------- [Illustration]

="THE EAGLE CLAW."= The best Trap in the World for catching FISH, ANIMALS & GAME. [Illustration] One bait will catch =Twenty Fish=.

No. 1, for ordinary fishing, small game, &c. 35c. No. 2, for large fish, mink, musk-rats, &c. 75c. Sent by mail. =J. BRIDE & CO.,= Mfrs., 297 Broadway, New-York.

Send for Catalogue of useful novelties and mention this paper. ---------------------------------------------------------------------- EMERY AND CORUNDUM WHEELS, for Grinding and Surfacing Metals and other materials. By ARTHUR H. BATEMAN, F. C. S. A paper read before the Society of Arts, London. Files, Chisels, Grindstones, Composition of Emery, where found, Quality, Specific Gravity, and Hardness, Manufacture of the wheels, Emery Powder, Buffing, Polishing, Cutting Power, Corundum. The Magnesian or Union Wheel, the Tanite, the Northampton, the Vulcanite, the Climax, the Vitrified, a porous wheel with central water supply. Fifty uses enumerated to which the wheels are put, for Metals, Stone, Teeth, Millboard, Wood, Agate, and Brick. How to mount a wheel. How to hold the work, and directions for various classes of work. Discussion and questions proposed and answered. Contained in SCIENTIFIC AMERICAN SUPPLEMENT, NO. =125=. Price 10 cents. To be had at this office and of all newsdealers. ---------------------------------------------------------------------- =THE BIGELOW= =Steam Engine.=

BOTH PORTABLE AND STATIONARY.

=The CHEAPEST AND BEST in the market. Send for descriptive circular and price list.=

=H. B. BIGELOW & CO., New Haven, Conn.= ---------------------------------------------------------------------- [Illustration: Diamonds and Carbon]

Shaped or Crude, furnished and set for Boring Rocks, Dressing Mill Burrs, Emery Wheels, Grindstones, Hardened Steel, Calender Rollers, and for Sawing Turning, or Working Stone and other hard substances: also Glaziers' Diamonds. J. DICKINSON, 64 Nassau St., N. Y. ---------------------------------------------------------------------- =SECOND-HAND ENGINES,=

Portable and Stationary, at Low Prices.

HARRIS IRON WORKS, TITUSVILLE, PA. ---------------------------------------------------------------------- HOW TO MAKE A PHONOGRAPH.

Full Instructions, with Eight Working Drawings, Half Size. Construction easy and Inexpensive. These drawings are from an actual working Phonograph; they show the sizes, forms, and arrangement of all the parts. The explanations are so plain and practical as to enable any intelligent person to construct and put a Phonograph in successful operation in a very short time. Contained in SCIENTIFIC AMERICAN SUPPLEMENT NO. =133.= Price 10 cents. To be had at this office and of all newsdealers. ---------------------------------------------------------------------- [Illustration: SCHLENKERS AUTOMATIC REVOLVING BOLT CUTTER DIAMOND SELF CLAMP PAPER CUTTER HOWARD'S SAFETY ELEVATORS HOWARD'S PARALLEL VISE HOWARD IRON WORKS BUFFALO N. Y. ] ---------------------------------------------------------------------- =_PERFECT_= =NEWSPAPER FILE=

The Koch Patent File, for preserving newspapers, magazines, and pamphlets, has been recently improved and price reduced. Subscribers to the SCIENTIFIC AMERICAN and SCIENTIFIC AMERICAN SUPPLEMENT can be supplied for the low price of $1.50 by mail, or $1.25 at the office of this paper. Heavy board sides; inscription "SCIENTIFIC AMERICAN," in gilt. Necessary for every one who wishes to preserve the paper.

Address =MUNN & CO., Publishers SCIENTIFIC AMERICAN.= ---------------------------------------------------------------------- THE TANITE CO., STROUDSBURG, PA. =EMERY WHEELS AND GRINDERS.= GEO. PLACE, 121 Chambers St., New York Agent. ---------------------------------------------------------------------- [Illustration: ROCK DRILLING MACHINES AND AIR COMPRESSORS.

MANUFACTURED BY BURLEIGH ROCK DRILL CO.

SEND FOR PAMPHLET. · FITCHBURG MASS. ] ---------------------------------------------------------------------- =STEAM PUMPS.=

HENRY R. WORTHINGTON,

239 Broadway, N. Y. 83 Water St., Boston.

THE WORTHINGTON DUPLEX PUMPING ENGINES FOR WATER WORKS--Compound, Condensing or Non-Condensing. Used in over 100 Water-Works Stations.

STEAM PUMPS--Duplex and Single Cylinder.

WATER METERS. OIL METERS.

=Prices largely Reduced.= ---------------------------------------------------------------------- [Illustration: WATSONS NON CHANGEABLE GAP LATHE HAS GREAT FACILITIES FOR LARGE OR MEDIUM SIZE WORK JAMES WATSON MANR. 1608 S. FRONT ST. PHILA. PA.] ---------------------------------------------------------------------- HARTFORD STEAM BOILER Inspection & Insurance COMPANY. W. B. FRANKLIN V. Pres't. J. M. ALLEN, Pres't. J. B. PIERCE, Sec'y. ---------------------------------------------------------------------- [Illustration]

=Patent Portable Chuck Jaws.=

Improved Solid Emery Wheels, for grinding Iron and Brass Castings, Tools, etc. Manufactured by AM. TWIST DRILL CO., Woonsocket, R. I. ---------------------------------------------------------------------- =$7= A DAY to Agents canvassing for the =Fireside Visitor=. Terms and Outfit Free. Address P. O. VICKERY, Augusta, Maine. ---------------------------------------------------------------------- =HAND SAW MILL= SAVES THREE MEN'S labor. S. C. HILLS, 78 Chambers St., N. Y. ---------------------------------------------------------------------- =BEST=

DAMPER REGULATORS

AND WEIGHTED GAUGE COCKS.

MURRILL & KEIZER, 44 HOLLIDAY ST., BALTIMORE. ---------------------------------------------------------------------- [Illustration: PATENTS]

=CAVEATS, COPYRIGHTS, TRADE MARKS, ETC.=

Messrs. Munn & Co., in connection with the publication of the SCIENTIFIC AMERICAN, continue to examine Improvements, and to act as Solicitors of Patents for Inventors.

In this line of business they have had OVER THIRTY YEARS' EXPERIENCE, and now have _unequaled facilities_ for the preparation of Patent Drawings, Specifications, and the Prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Munn & Co. also attend to the preparation of Caveats, Trade Mark Regulations, Copyrights for Books, Labels, Reissues, Assignments, and Reports on Infringements of Patents. All business intrusted to them is done with special care and promptness, on very moderate terms.

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_BRANCH OFFICE--Corner of F and 7th Streets, Washington, D. C._ ---------------------------------------------------------------------- The "Scientific American" is printed with CHAS. ENEU JOHNSON & CO.'S INK. Tenth and Lombard Sts., Philadelphia, and 59 Gold St., New York.

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TRANSCRIBER'S NOTES

Obvious punctuation errors have been corrected.

Spelling inconsistencies have been retained.

On page 83, the clause "It has an independent extinguisher for the smaller wick tube" had "ndependent" in the original.

On page 91, the ad reading "The Turbine Wheel made by Risdon & Co., Mt. Holly, N. J., gave the best results at Centennial tests." had "tets" in the original.

On page 92, the patent named "Gas, scintillator for lighting" was numbered "204,28" in the original. The final "5" has been added because sorting the list reveals that the patent numbers form a consecutive series from 204,122 to 204,413, with the only one missing being 204,285.

On page 92, the patent named "Shoetip" was guessed at; the "t" is unclear in the original.

On page 94, the phrase "Alcohol Oxidized in the System." had no terminating punctuation in the original.

On page 94, the illustration containing the words "Diamonds and Carbor", the "Carbor" may be an abbreviation for "Carborundum"; the image is unclear in the original.

On page 94, in the advertisement for "WATSONS [sic] NON [sic] CHANGEABLE GAP LATHE", the abbreviation "MANR." had the "R" as a superscript in the original.