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قراءة كتاب Scientific American Supplement, No. 492, June 6, 1885

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‏اللغة: English
Scientific American Supplement, No. 492, June 6, 1885

Scientific American Supplement, No. 492, June 6, 1885

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دار النشر: Project Gutenberg
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SCIENTIFIC AMERICAN SUPPLEMENT NO. 492

NEW YORK, JUNE 6, 1885

Scientific American Supplement. Vol. XIX, No. 492.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

TABLE OF CONTENTS.
I. ENGINEERING AND MECHANICS.—The New Spanish Artillery.—2 engravings.
Qualitative Tests for Steel Rails.—By L. TETMAJER.
A New Form of Small Bessemer Plant.—By A. TRAPPEN.
Triple Compound Engines.—A paper read by A.E. SEATON before the Institution of Naval Architects.
Early History of the Steam Jack.
Bridge over the River Adige, at Verona.—13 figures.
Pumping Machinery.—Mine pumps.—Direct acting steam pumps. By E.D. LEAVITT.
Improved Gun Pressure Gauge.—2 figures.
Measuring the Thickness of Boiler Plates.
On an Express Engine.
II. TECHNOLOGY.—Improved Plaiting Machine.—With engraving.
Self-acting Shuttle Guard.—1 figure.
Ruler and Triangle for Hatching.
The Distillation of Sea Water.—1 figure.
Aids to Correct Exposure on Photographic Plates.—An interesting paper by W. GOODMAN.
Isochromatic Photography.—By FRED. E. IVES.—2 figures.
Distortion from Expansion of the Paper in Photography.
III. ELECTRICITY, ETC.—On the Fritts Selenium Cells and Batteries.—A paper read before the American Association by C.E. FRITTS.
Electricity Applied to the Manufacture of Varnish.—2 figures.
Naglo Brothers' Telephone System.—3 figures.
The Gerard Electric Lamp.—1 figure.
A New Reflecting Galvanometer.—3 figures.
IV. ART AND ARCHITECTURE.—Groups of Statuary for the Pediment of the House of Parliament in Vienna.—2 engravings.
The Casino at Monte Carlo.—An engraving.
V. PHYSICS.—Determining the Density of the Earth.—1 figure.
Physics without Apparatus.—The Porosity and Permeability of Bodies.—A Hot Air Balloon.—2 engravings.
VI. NATURAL HISTORY.—Winter and the Insects.—An engraving.
Silk Worm Eggs.—With engraving.
VII. HORTICULTURE.—The Melleco.—Ullucus tuberosa.—With engraving.
VIII. PHYSIOLOGY, MEDICINE, ETC.—Histological Methods.—Section cutting machines.—Methods of preserving the tissues.—Preservative media.—Preparation for mounting tissues.—1 figure.
Life History of a New Septic Organism.
Erythroxylon Coca as a

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