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قراءة كتاب Scientific American Supplement, No. 441, June 14, 1884.

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‏اللغة: English
Scientific American Supplement, No. 441, June 14, 1884.

Scientific American Supplement, No. 441, June 14, 1884.

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دار النشر: Project Gutenberg
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SCIENTIFIC AMERICAN SUPPLEMENT NO. 441

NEW YORK, JUNE 14, 1884

Scientific American Supplement. Vol. XVII, No. 441.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

TABLE OF CONTENTS.
I. CHEMISTRY AND METALLURGY.—On Electrolysis.—Precipitation of lead, thallium, silver, bismuth, manganese, etc.—By H. SCHUCHT
The Electro-Chemical Equivalent of Silver
Zircon.—How it can be rendered soluble.—By F. STOLBA
A New Process for Making Wrought Iron Directly from the Ore. —Comparison with other processes.—With descriptions and engravings of the apparatus used
Some Remarks on the Determination of Hardness in Water
On the changes which Take Place in the Conversion of Hay into Ensilage.—By F.J. Lloyd
II. ENGINEERING AND MECHANICS.—Faure's Machine for Decorticating Sugar Cane.—With full description and 13 figures
The Generation of Steam and the Thermodynamic Problems Involved.—By WM. ANDERSON.—Apparatus used in the experimental determination of the heat of combustion and the laws which govern its development.—Ingredients of fuel.—Potential energy of fuel.—With 7 figures and several tables
Planetary Wheel Trains.—Rotations of the wheels relatively to the train arm.—By Prof. C.W. MACCORD
The Pantanemone.—A New Windwheel.—1 engraving
Relvas's New Life Boat.—With engraving
Experiments with Double Barreled Guns and Rifles. —Cause of the divergence of the charge.—4 figures
Improved Ball Turning Machine.—1 figure
Cooling Apparatus for Injection Water.—With engraving
Corrugated Disk Pulleys.—1 engraving
III. TECHNOLOGY.—A New Standard Light
Dr. Feussner's New Polarizing Prism.—Points of difference between the old and new prisms.—By P.R. SLEEMAN
Density and Pressure of Detonating Gas
IV. ELECTRICITY, LIGHT, ETC.—Early History of the Telegraph. —Pyrsia, or the system of telegraphy among the Greeks. —Communication by means of characters and the telescope. —Introduction of the magnetic telegraph between Baltimore and Washington
The Kravogl Electro Motor and its Conversion Into a Dynamo Electric Machine.—5 figures
Bornhardt's Electric Machine for Blasting in Mines. —15 figures
Pritchett's Electric Fire Alarm.—1 figure
A Standard Thermopile
Telephonic Transmission without Receivers.—Some of the apparatus exhibited at the annual meeting of the French Society of Physics.—Telephonic transmission through a chain of persons
Diffraction Phenomena during Total Solar Eclipses.—By G.D. Hiscox
V. BOTANY AND HORTICULTURE.—Gum Diseases in Trees.— Cause and contagion of the same
Drinkstone Park.—Trees and plants cultivated therein.— With 2 engravings
VI. MEDICINE AND HYGIENE.—Miryachit.—A newly-discovered disease of the nervous system, and its analogues.—By WM. A. HAMMOND
VII. public@vhost@g@gutenberg@html@files@15833@[email protected]#art29"

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