NEW YORK, FEBRUARY 13, 1892
Reading edition
Scientific American Supplement. Vol. XXXIII, No. 841.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
TABLE OF CONTENTS.
I. ANTHROPOLOGY.—Investigation of a Mound near Jefferson City, Mo.—By A.S. LOGAN.—Prehistoric remains from the banks of the Missouri River
II. BIOLOGY.—New Observations on the Language of Animals.—By M. DE LACAZE DUTHIERS.—A lengthy examination of some facts in the language of animals, including birds and quadrupeds
III. BOTANY.—Electricity in Agriculture.—By CLARENCE D. WARNER.—The effect of currents of electricity upon the germination of seeds.—Interesting experiments detailed, which can be easily repeated
Electricity in Horticulture.—The effect of the electric light on vegetation, availability it may possess for the gardener
Pentapterygium Serpens.—A Himalayan flowering plant introduced in England about ten years ago.—2 illustrations
The Perforation of Flowers.—What insects do to promote the propagation of plants by perforating the flowers in search of honey.—16 illustrations
IV. CHEMISTRY.—A New Laboratory Process for Preparing Hydrobromic Acid.—By G.S. NEWTH.—Simple synthesis of hydrogen and bromium
Boron Salts.—Boron sulphides and selenides and silicon selenide
Detection of Peanut Oil in Olive Oil.—A practical laboratory test for the above adulteration
Hydroxylamine.—Recent preparation of this compound and its properties
New Boron Compounds.—Compounds of boron, phosphorus, and iodine recently prepared by M. MOISSAN
Sapotin, a New Glucoside.—By GUSTAVE MICHAUD.—Preparation of a new glucoside from almonds and other sources
V. CIVIL ENGINEERING.—Completion of the Mersey Tunnel Railway.—The penetration of the bed of the Mersey River by a tunnel at the rate of 150 feet per week.—Details of the work
VI. EDUCATIONAL SCIENCE.—Chinese Competitive Examinations.—Interesting details of the famous examinations of China.—Fatal consequences to overworked competitors
VII. ELECTRICAL ENGINEERING.—High Speed Engine and Dynamo.—A high speed compound engine, running at 500 revolutions per minute, with direct-driven dynamo for electric lighting.—3 illustrations
VIII. MEDICINE.—The Treatment of Rattlesnake Bite by Permanganate of Potassium, Based on Nine Successful Cases.—By AMOS W. BARBER, M.D.—The use of this powerful disinfectant, and the proper treatment and mode of applying it.
IX. METEOROLOGY.—Modification of Our Climate.—By JOSEPH WALLACE.—Climate epochs and the probabilities of the present climatic era.—Changes within the records of man
The Eruption of Krakatoa.—A graphic description of this catastrophe, involving the lives of 35,000 people
X. MILITARY ENGINEERING.—The Military Engineer and His Work.—By Col. W.R. KING.—A Sibley College lecture, treating of the special problems In fortifications, sieges, and the more pacific work of surveys and explorations
XI. MINERALOGY.—Natural Sulphide of Gold.—By T.W.T. ATHERTON.—A probable new occurrence of gold
XII. NATURAL HISTORY.—The Living Jerboa in the Zoological Garden of Berlin.—A rare rodent from South Africa, one seldom seen alive in captivity.—5 illustrations
XIII. NAVAL ENGINEERING.—Twenty-four Knot Steamers.—The possibility of fast ships for long voyages.—The prospects and difficulties
XIV. RAILROAD ENGINEERING.—A Steam Street Railway Motor.—A noiseless motor built of steel on trial in Chicago.—1 illustration
XV. SANITARY ENGINEERING.—Some Means of Purifying Water.—Different filtering processes and the subsidence treatment of water
XVI. TECHNOLOGY.—Action of Caustic Soda on Wood.—By M.H. TAUSS.—Direct experiments on the action of lye on wood at various pressures
Burning Brick with Crude Oil Fuel.—The use of petroleum in brick kilns.—Its advantages, cleanliness, and cheapness.
Chlorine Gas and Soda by the Electrolytic Process.—The decomposition of common salt solution into chlorine and caustic soda on the commercial scale
How Enameled Letters are Made.—The manufacture of separate enameled letters as conducted in London.—5 illustrations
How Mechanical Rubber Goods are Made.—Hose, corrugated matting, packing, and jar rings.—Processes of their production