WAREHOUSE, No. 77 South Third street, South East corner of Walnut street PHILADELPHIA. MORRIS, TASKER & MORRIS, Iron Founders, and manufacturers of Coal Grates, Furnaces, Kitchen Ranges, Bath Boilers, erpetual Ovens, &c. Welded Wrought Iron Tubes From 3 inches to of an inch bore, and from 2 to 12 feet long. For Locomotive or other Steam Boiler Flues, Gas and Water Pipe, Warming Prisone and reen Houses with Hot Water circulation, &c. Patterns for the Foundry received, and castings delivered at the Warehouse, Third and Walnut Street. ABORATORY FOR PRACTICAL AND ANALYTICAL CHEMISTRY The Subscriber continues to give his personal attention to instruction in PRACTICAL HEMISTRY, MINERALOGY AND GEOLOGY, according to the method which he has ursued successfully during the past seventeen years in this city. A commodious and well rnished LABORATORY, a large and select LIBRARY of practical and scientific works in the nglish, German, and French languages, together with mineral, geological, and technical OLLECTIONS, offer every facility to the student. ANALYSES of Ores, Minerals, Soils, Waters, Vegetable substances, and the productions Art will be carefully executed. Persons residing at a distance may send by letter small rerage samples of ores, earths, &c.. weighing from 100 grains to one ounce. The various applications of Chemistry to Manufactures, Agriculture, Medicine, and Phar acy will receive special attention. Where it is practicable, researches will be instituted ad opinions given on all chemical questions. Apply to WM. HAMILTON, Actuary of the Franklin Institute, or to the subscriber, JAMES C. BOOTH, At the Laboratory, College Avenue, 10th St. between High and Chesnut Sts. AMERICAN AND FOREIGN AGENCY FOR PATENTS. CHARLES M. KELLER, Engineer and Attorney for procuring patents, (late Chief Examler in the United States Patent Office,) having dissolved the Partnership, until recently existg in the City of Washington under the firm of Keller and Greenough, has commenced the ractice of his profession in the City of New York. Having for many years been connected with the United States Patent Office, and having deoted his whole life to mechanical and scientific pursuits, and being intimately acquainted ith the history of inventions, and the progress of the useful arts, and with the practice and cisions of the United States Courts, where questions relating to patents are involved, he feels pofident that he will be able to render valuable aid to those whose interests may lie in this imortant branch of property. He will attend to the preparation of specifications and drawings for the procuring of patents; so, to the examination and reissue of patents already granted, for which he believes his exrience and practical knowledge of the arts, and the law of patents, particularly qualifies m. He will also attend to the presentation of applications for patents before the United fates Patent Office, and argue questions of doubt before the Commissioner of Patents, and ppeals from the decisions of the Patent Office. In all questions of litigation arising under patents, he will prepare the cases for the legal prossion, in order that the law may be correctly applied to the scientific part of the subject; and all superintend the taking of depositions to be used in cases of conflicting applications before e United States Patent Office, or to be read in Court; and, in short, may be consulted on all estions relating to his profession and the laws of patents. He may be consulted on all questions of Engineering, particularly in the branches involved manufactures and the construction of machinery, and he flatters himself that his long exrience in the duties of Examiner of Patents, requiring a practical and theoretical knowledge all the branches of industry, will enable him to render important service on these various bjects, especially in questions involving the union of various branches of manufactures. He has made such arrangements as will enable him to conduct business before the Patent fice with as much facility as if personally present; and his location in the city of New York, e great centre of industry, has been selected with the view of facilitating personal interviews th those who may employ him. This location will also enable him to dispose of inventions id patent rights. Patents may be procured through him in all foreign countries in which such rights are recog sed, and to this end he has secured the assistance and co-operation of gentlemen of the highit integrity and talent in the various European States. Office, No. 57 Chambers Street, City of New York. Subscribers when remitting payment for the Journal through the Post Office, will plea SUBSCRIPTION PRICE-Five dollars for one copy, eight dollars for two copies, or tak Rough Notes of an Exploration for an Inter-oceanic Canal Route of the Rivers Atrato and San Juan, in New Granada, South America. By John C. Traut List of American Patents issued from February 7th, to February 28th, 1854, inclu- MECHANICS, PHYSICS, AND CHEMISTRY. An Account of some Experiments on a Mixture of Saturated and Surcharged Note on Dr. Wetherill's remarks upon a Process for Organic Analysis. By J. H. Magnetic-Iron Beds of the Penokie Range, on the south shore of Lake Superior, Specific and Latent Effects of Vapors. By MM. Favre and Silbermann, Results obtained from Testing the Strength of an Iron Girder, recently con- On Soap as a Means of Art. By. F. Branson, Identity of Dynamic or Voltaic Electricity with Static or Frictional Electricity. JOURNAL OF THE FRANKLIN INSTITUTE OF THE State of Pennsylvania, FOR THE PROMOTION OF THE MECHANIC ARTS. DEVOTED TO Mechanical and Physical Science, CIVIL ENGINEERING, THE ARTS AND MANUFACTURES, AND THE RECORDING OF American and other Patented Inventions. EDITED BY JOHN F. FRAZER. Assisted by the Committee on Publications of the Franklin Institute. No. 16 Arch Street, Philadelphia, ENGINEERS AND MACHINISTS, CONTRACTORS FOR WATER WORKS, HYDRAULIC MACHINERY, WARMING AND VENTILATING APPARATUS. Will construct Steam Engines, and Pumps for Draining Mines and Land, supplying water to Towns, Factories, Farms, &c. Also, Street Stops, Fire Plugs, Water Tanks, Hydraulic Rams, (Birkinbine's Patent), and Hydraulic Machinery in general. B. & T. contract for Warming and Ventilating Buildings by Steam or Warm Water. The Journal of the Franklin Institute IS PUBLISHED ON THE FIRST OF EACH MONTH, At Five Dollars per annum for one copy, Eight Dollars for two copies, and Ten Dollars for three copies Payable on the completion of the Sixth Number. The Journal will be delivered free of Postage when the subscription is paid in advance, (see postages and remittances on last page of the cover.) Communications and letters on business must be directed TO THE ACTUARY OF THI FRANKLIN INSTITUTE, PHILADELPHIA;-the postage paid. The Journal can also be obtained from the following: CHARLES S. FRANCIS & CO., City of New York. CROSBY, NICHOLS & CO., Boston, Massachusetts. FETRIDGE & Co., " HENRY WHIPPLE & SON, Salem, N. HICKMAN, Baltimore, Maryland. F. TAYLOR, Washington, District of Columbia. ALEXANDER YOUNG, Camden, South Carolina. ALFRED C. JONES, New Orleans, Louisiana. London-EDWARDS, SANDFORD & Co., No. 10 Gresham street, Paris-HECTOR BOSSANGE, No. 11 Quai Voltaire, Who are authorised to receive subscriptions, and to make exchanges for periodicals devoted to the Arts and Sciences. To Readers and Correspondents. The Committee on Publications, anxious to render this work as valuable as possible, 'have determined to offer a liberal compensation for original articles on the subjects to which this Journal is devoted; and they acccordingly invite mechanics and men of science to communicate their observations. This world renowned Artificial Limb, it will be recollected, was among the few signal triumphs of American ingenuity exhibited in the WORLD'S EXHIBITION in 1851. It there received the award of the GREAT PRIZE MEDAL, as the "best" limb (amongst thirty of the best English, French, and German manufacture) exhibited; and was so well appreciated, that an extensive manufactory is now in successful operation at 30 Regent Street, London, under the auspices of the Queen and the Medical Faculty of London and Paris. Mr. Palmer receives the patronage of every eminent Surgeon in the United States-and has here been honored with twenty GOLD AND SILVER MEDALS, or "FIRST PREMIUMS." Five Hundred Persons now walking daily upon PALMER'S PATENT LEG, declare it the only adequate substitute extant. Pamphlets giving full particulars, sent gratis. Address, B. FRANK. PALMER, 376, Chesnut Street, Philadelphia, Pa. DRAWING. THE subscribers would respectfully inform their friends and the public, that they MACHINE, ARCHITECTURAL, TOPOGRA PHICAL, and LANDSCAPE DRAWING, and PAINTING in OIL and WATER COLORS. Day and Evening Classes at the office, and instructions given in Schools and Families. Drawings for Patents correctly made, and Designs furnished. J., R. H., & E. M. KERN. No. 62, Filbert Street, near 10th REFERENCES. P. F. ROTHERMEL, Esq., DR. H. S. PATTERSON, WM. HAMILTON, Actuary Fr. Inst. AMERICAN AND FOREIGN PATENT AGENCY. MESSRS. MUNN & CO., No. 128, FULTON STREET, NEW YORK, continue to solicit Patents in all countries where laws for the protection of Inventors exist, with the utmost facility and despatch. They have responsible Agents in the chief Cities of Europe. Applications for American Patents receive especial attention. Specifications and Drawings accurately prepared. THE SCIENTIFIC AMERICAN, a Weekly Journal, devoted to the Interests of Mechanics, Manufacturers, and Inventors. It contains a great number of Engravings, and is very widely circulated. Terms, $2 per annum; $1 for six months. MUNN & CO., Publishers, New York. VIRGINIA LOCOMOTIVE AND CAR WORKS, Wolfe Street and River Potomac, Alexandria, Va. SMITH & PERKINS, Proprietors, manufacture Locomotive Engines and Tenders; Marine and Stationary Engines and Boilers; Chilled Car Wheels and Axles; Patent Chilled and Wrought Slip-tire; Machinery and Castings generally. The undersigned having erected very extensive shops, and procured the most modern machinery and tools, are prepared to execute orders for LocoMOTIVE ENGINES, CARS, AND MACHINERY of all kinds, with despatch, and on the most favorable terms. R. C. SMITH,. Late of the Alexandria Iron Works. Late Master of Machinery on the Balt. & O. Railroad. |