NEW YORK, March 28, 1891
Reading edition
Scientific American Supplement. Vol. XXXI., No. 795.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
TABLE OF CONTENTS.
I. AVICULTURE.—The Effect on Fowls of Nitrogenous and Carbonaceous Rations.— A very valuable report upon the effects of different diet on chickens, with tables of data.—1 illustration
II. BIOGRAPHY.—N.F. Burnham and his Life Work.—By W.H. BURNHAM.—The life of one of the earliest turbine wheel manufacturers, an inventor of turbine wheels and auxiliary machinery. —1 illustration
III. BOTANY.—The Source of Chinese Ginger.—An identification of a long unknown plant
IV. CIVIL ENGINEERING.—A Railway through the Andes.—An interesting enterprise now in progress in South America, with maps.—2 illustrations
Chicago as a Seaport.—Proposed connection of Chicago with the waters of the Mississippi River, thereby placing it in water communication with the sea.—2 illustrations
Floating Elevator and Spoil Distributor.—A machine for removing dredged material from barges, as employed on the Baltic Sea Canal Works.—10 illustrations
V. ELECTRICITY.—Alternate Current Condensers.—A valuable review of the difficulties of constructing these condensers.—An important contribution to the subject.—1 illustration
Electricity in Transitu.—From Plenum to Vacuum.—By Prof. WILLIAM CROOKES.—Continuation of this important lecture with profuse illustrations of experiments.—14 illustrations
The Telegraphic Communication between Great Britain, Europe, America, and the East.—By GEORGE WALTER NIVEN.— The engineering aspects of electricity.—The world's cables and connections.—2 illustrations
VI. HORTICULTURE.—Herbaceous Grafting.—A hitherto little practiced and successful method of treating herbs, with curious results
VII. MECHANICAL ENGINEERING.—Improved Cold Iron Saw.—The "Demon" cold saw for cutting Iron.—Its capacity and general principles.—1 illustration
VIII. MEDICINE AND HYGIENE.—How to Prevent Hay Fever.—By ALEXANDER RIXA.—A systematic treatment of this very troublesome complaint, with a special prescription and other treatment.
IX. MISCELLANEOUS.—The Business End of the American Newspaper.—By A.H. SIEGFRIED.—A graphic presentation of the technique of the newspaper office, circulation of the American papers, methods of printing, etc.
The New Labor Exchange at Paris.—A new establishment, long demanded by the laboring population of Paris.—Its scope and prospects.—2 illustrations
X. NAVAL ENGINEERING.—The Empress of India.—The pioneer of a fast mail service to ply in connection with the Canadian Pacific Railway between Vancouver, China, and Japan.—1 illustration
XI. PHYSICS.—Stereoscopic Projections.—A most curious method of securing stereoscopic effects with the magic lantern upon the screen, involving the use of colored spectacles by the spectators. —1 illustration
XII. TECHNOLOGY.—Gaseous Illuminants.—By Prof. VIVIAN B. LEWES.—The fifth and last of Prof. Lewes' Society of Arts lectures, concluding his review of the subject of gas manufacture