SCIENTIFIC AMERICAN SUPPLEMENT NO. 795

NEW YORK, March 28, 1891

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 ofdata.—1 illustration
II.	BIOGRAPHY.—N.F. Burnham and his Life Work.—By W.H. BURNHAM.—Thelife 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 ofa long unknown plant
IV.	CIVIL ENGINEERING.—A Railway through the Andes.—Aninteresting enterprise now in progress in South America, withmaps.—2 illustrations
	Chicago as a Seaport.—Proposed connection of Chicago with thewaters of the Mississippi River, thereby placing it in watercommunication with the sea.—2 illustrations
	Floating Elevator and Spoil Distributor.—A machine for removingdredged material from barges, as employed on the Baltic SeaCanal Works.—10 illustrations
V.	ELECTRICITY.—Alternate Current Condensers.—A valuable reviewof the difficulties of constructing these condensers.—An importantcontribution to the subject.—1 illustration
	Electricity in Transitu.—From Plenum to Vacuum.—By Prof.WILLIAM CROOKES.—Continuation of this important lecture withprofuse 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 andconnections.—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 generalprinciples.—1 illustration
VIII.	MEDICINE AND HYGIENE.—How to Prevent Hay Fever.—ByALEXANDER RIXA.—A systematic treatment of this very troublesomecomplaint, with a special prescription and other treatment.
IX.	MISCELLANEOUS.—The Business End of the American Newspaper.—ByA.H. SIEGFRIED.—A ... BU KİTABI OKUMAK İÇİN ÜYE OLUN VEYA GİRİŞ YAPIN! Sitemize Üyelik ÜCRETSİZDİR!