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PDFI. ENGINEERING.—Farcot’s Improved Woolf Compound Engine.—4 figures.
The “Swallow,” a New Vehicle.
Boring an Oil Well.
A Cement Reservoir.—2 figures.
“Flying.”
II. Technology.—Iron and Steel.—By
Barnard Samuelson.
The
world’s production of pig iron.—Wonderful
uses and demands
for
iron and steel.—Progress of Bessemer steel.—Latest
improvements
in iron making.—Honors and rewards to inventors.
—Growth
of the Siemens-Martin process.—The future
of iron and
steel.—Relations
between employers and workmen.
Machine for Grinding Lithographic Inks and Colors.—1 figure.
A new Evaporating apparatus.—2 figures.
Photo Plates.—Wet and Dry.
Gelatino Bromide Emulsion with Bromide of Zinc.
The Removal of Ammonia from Crude Gas.
III. Medicine and Hygiene.—The
Hair, its Uses and its Care.
The
Influence of Effective Breathing in Delaying the Physical
Changes
Incident to the Decline of Life, and in the Prevention
of
Pneumonia. Consumption, and Diseases of Women.—By
David
Wark.
M.D.—Pneumonia.—The true first
stage of Consumption. The
development
of tubercular matter in the blood.—The value
of
cod-liver
oil in the prevention of consumption.—The
influence
of
normal breathing on the female generative organs—Showing
how
the
breathing powers may be developed.—The effects
of adequate
respiration
in special cases.
Vital Discoveries in Obstructed Air and Ventilation.
IV. Electricity.—The Portrush
Electric Railway, Ireland.—By Dr.
Edward
Hopkinson.
The Thomson-Houston Electric Lighting System.—4 figures.
A Modification of the Vibrating Bell.—2 figures.
V. Chemistry.—Acetate of Lime.
Reconversion of Nitroglycerine into Glycerine. By C.L. BLOXAM.
Carbonic Acid and Bisulphide of Carbon. By John Tyndall.
VI. Agriculture and horticulture.—Propagation of Maple Trees.
Dioscorea Retusa.—Illustration.
Ravages of a Rare
Scolytid Beetle in the Sugar Maples of
Northeastern
New York.—Several figures.
The Red Spider. 4 figures.
Japanese Peppermint.
VII. Natural history.—The Recent Eruption of Etna.
The Heloderma Horridum.—Illustration.
The Kangaroo.
VIII. Architecture.—Design for a Villa.—Illustration.
IX. Biography.—William Spottiswoode.—Portrait.
