NEW YORK, November 21, 1891.
Reading edition
Scientific American Supplement. Vol. XXXII, No. 829.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
TABLE OF CONTENTS.
I. ASTRONOMY.—The Sun's Motion in Space.—By A.M. CLERKE.—A very interesting article on the determination of this hitherto uncertain factor.
II. BOTANY.—Hemlock and Parsley.—By W.W. BAILEY.—Economic botany of Umbelliferæ.
Raphides—the Cause of the Acridity of Certain Plants.—By R.A. WEBER.—Effect of these crystals on the expressed juice from calla and Indian turnip and other plants.
The Eremuri.—A very attractive flower plant for gardens.—1 illustration.
III. DECORATIVE ART.—The Decorative Treatment of Natural Foliage.—By HUGH STANNUS. The first of a series of lectures before the London Society of Arts, giving an elaborate classification of the principles of the subject.—5 illustrations.
IV. ELECTRICITY.—The Independent—Storage or Primary Battery—System of Electric Motive Power.—By KNIGHT NEFTEL.—Abstract of a recent paper read before the American Street Railway Association on the present aspect of battery car traction.
V. GEOGRAPHY.—The Colorado Desert Lake.—A description of the new overflow into the Colorado Desert, with the prognosis of its future.
VI. GEOLOGY.—Animal Origin of Petroleum and Paraffine.—A plea for the animal origin of geological hydrocarbons based on chemical and geological reasons.
The Origin of Petroleum.—By O.C.D. Ross.—A further and more lengthy discussion in regard to petroleum and theory of its production by volcanic action.
VII. GUNNERY.—Weldon's Range Finder.—An instrument for determining distances, with description of its use.—3 illustrations.
VIII. MECHANICAL ENGINEERING.—Mercury Weighing Machine.—A type of weighing machine depending on the displacement of mercury.—1 illustration.
Wheels Linked with a Bell Crank.—Curious examples of mechanical constructions in the communication of motion between wheels.—3 illustrations.
IX. MEDICINE AND HYGIENE.—Cold and Mortality.—By Dr. B.W. RICHARDSON.—The effect of cold upon the operation of the animal system, with practical rules.
On the Occurrence of Tin in Canned Food.—By H.A. WEBER.—A very valuable and important series of analyses of American and other food products for tin and copper.
The Treatment of Glaucoma.—Note on the treatment of this disease fatal to vision.
X. METALLURGY.—On the Elimination of Sulphur from Pig Iron. By J. MASSENEZ.—The desulphurization of pig iron by treatment with manganese, with apparatus employed.—5 illustrations.
XI. MISCELLANEOUS.—The California Raisin Industry.—How raisins are grown and packed in California, with valuable figures and data.
The Recent Battles in Chile.—The recent battles of Concon and Vina del Mar.—2 illustrations.
XII. NATURAL HISTORY.—The Whale-headed Stork.—A curious bird, a habitant of Africa and of great rarity.—1 illustration.
XIII. NAVAL ENGINEERING.—A Twin Screw Launch Run by a Compound Engine.—The application of a single compound tandem engine to driving twin screws.—2 illustrations.
Improvements in the Construction of River and Canal Barges.—By M. RITTER.—A very peculiar and ingenious system of construction, enabling the same vessel to be used at greater or less draught according to the requirements and conditions of the water.—5 illustrations.
Reefing Sails from the Deck—An effective method of reefing, one which has been subjected to actual trial repeatedly in bad weather off Cape Horn.—3 illustrations.
XIV. PHYSICS.—The Cyclostat.—An apparatus for observing bodies in rapid rotary motion.—5 illustrations.
XV. TECHNOLOGY.—A New Process for the Bleaching of Jute.—By Messrs. LEYKAM and TOSEFOTHAL.—A method of rendering the fiber of jute perfectly white, with full details.
A Violet Coloring Matter from Morphine.—The first true coloring matter obtained from a natural alkaloid.
Liquid Blue for Dyeing.—Treatment of the "Dornemann" liquid blue.
New Process for the Manufacture of Chromates.—By J. MASSIGNON and E. VATEL.—Manufacture of chromates from chromic iron ore by a new process.
The Congressional troops advancing. The river Aconcagua. Balmaceda's troops retreating. The Esmeralda. Concon Point. The Magellanes. THE BATTLE OF CONCON, CHILE. August 21, 1891.
Esmeralda firing shell at Fort Callao. Almirante Cochrane firing at Balmaceda's artillery behind Fort Callao. Battery of Congress artillery trying to silence government troops at Vina del Mar. Balmaceda's field batteries at back of Fort Callao. Fort Callao. Congress infantry firing at troops at Vina del Mar, Balmaceda's infantry returning fire of Congress troops opposite. English, American, German, and French men-of-war watching the battle of Vina del Mar. THE BATTLE OF VIÑA DEL MAR, CHILE, AUGUST 1891.
