The Project Gutenberg EBook of Scientific American Supplement, No. 717,
September 28, 1889, by Various

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Title: Scientific American Supplement, No. 717, September 28, 1889

Author: Various

Release Date: February 12, 2006 [EBook #17755]

Language: English

Character set encoding: ASCII

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[Illustration]

SCIENTIFIC AMERICAN SUPPLEMENT NO. 717

NEW YORK, SEPTEMBER 28, 1889.

Scientific American Supplement. Vol. XXVIII., No. 717.

Scientific American established 1845.

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

* * * * *

TABLE OF CONTENTS.

I. CIVIL ENGINEERING.--The Girard Hydraulic Railway.--One of
the great curiosities of the Paris exposition, the almost
frictionless railway, with sectional illustrations of its
structure.--8 illustrations. 11451

II. ELECTRICITY.--Early Electric Lighting.--Electric lighting in
Salem in 1859, a very curious piece of early history. 11458

Electric Motor for Alternating Currents.--A motor on an
entirely new principle for the application of the alternating
current with results obtained, and the economic outlook of
the invention. 11458

Portable Electric Light.--A lamp for military and other use,
in which the prime motor, including the boiler and the lamp
itself, are carried on one carriage.--1 illustration. 11458

The Electric Age.--By CHARLES CARLETON COFFIN.--A short
_resume_ of the initial achievements of modern
electricity. 11458

III. GEOLOGY.--The Fuels of the Future.--A prognosis of the future
prospect of the world as regards a fuel supply, with a
special reference to the use of natural gas. 11457

IV. MISCELLANEOUS.--Preservation of Spiders for the Cabinet.--A
meth