Scientific American, Volume 40, No. 13, March 29, 1879

Scientific American, Volume 40, No. 13,?by Various

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March 29, 1879, by Various This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org
Title: Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Author: Various
Release Date: July 18, 2006 [EBook #18866]
Language: English
Character set encoding: ISO-8859-1
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[Illustration: Issue Title.]

SCIENTIFIC AMERICAN

A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES.

NEW YORK, MARCH 29, 1879.
Vol. XL., No. 13. [NEW SERIES.]
$3.20 PER ANNUM. [POSTAGE PREPAID.]
* * * * *

SCIENTIFIC AMERICAN.
ESTABLISHED 1845.
MUNN & CO., Editors and Proprietors.
PUBLISHED WEEKLY AT
NO. 37 PARK ROW, NEW YORK.
O. D. MUNN. A. E. BEACH.
TERMS FOR THE SCIENTIFIC AMERICAN.
One copy, one year, postage included $3 20 One copy, six months, postage included 1 60
CLUBS.--One extra copy of THE SCIENTIFIC AMERICAN will be supplied gratis for every club of five subscribers at $3.20 each; additional copies at same proportionate rate. Postage prepaid.
Single copies of any desired number of the SUPPLEMENT sent to one address on receipt of 10 cents.
Remit by postal order. Address
MUNN & CO., 37 Park Row, New York.
THE SCIENTIFIC AMERICAN SUPPLEMENT
is a distinct paper from the SCIENTIFIC AMERICAN. THE SUPPLEMENT is issued weekly. Every number contains 16 octavo pages, with handsome cover, uniform in size with SCIENTIFIC AMERICAN. Terms of subscription for SUPPLEMENT, $5.00 a year, postage paid, to subscribers. Single copies 10 cents. Sold by all news dealers throughout the country.
COMBINED RATES.--The SCIENTIFIC AMERICAN and SUPPLEMENT will be sent for one year, postage free, on receipt of seven dollars. Both papers to one address or different addresses, as desired.
The safest way to remit is by draft, postal order, or registered letter.
ADDRESS MUNN & CO., 37 PARK ROW, N. Y.
SCIENTIFIC AMERICAN EXPORT EDITION.
The SCIENTIFIC AMERICAN Export Edition is a large and splendid periodical, issued once a month. Each number contains about one hundred large quarto pages, profusely illustrated, embracing: (1.) Most of the plates and pages of the four preceding weekly issues of the SCIENTIFIC AMERICAN, with its splendid engravings and valuable information; (2.) Commercial, trade, and manufacturing announcements of leading houses. Terms for Export Edition, $5.00 a year, sent prepaid to any part of the world. Single copies 50 cents. Manufacturers and others who desire to secure foreign trade may have large, and handsomely displayed announcements published in this edition at a very moderate cost.
The SCIENTIFIC AMERICAN Export Edition has a large guaranteed circulation in all commercial places throughout the world. Address MUNN & CO., 37 Park Row, New York.
VOL. XL., NO. 13. [NEW SERIES.] THIRTY-FOURTH YEAR.
NEW YORK, SATURDAY, MARCH 29, 1879.
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CONTENTS.
(Illustrated articles are marked with an asterisk.)
Africa crossed again 193 Aluminum 197 Barometer, aneroid 201 Bolt, door, improved* 198 Bread, snow-raised 199 Buffalo, domestication of the 197 Carpet beetle, remedy for the 195 Chimney flues 198 Clocks, pneumatic 196 Cooper, Peter, as an inventor 193 Crusher, ore, novel* 194 Electricity, statical, phenom. in 194 Flour, banana 195 Furnace, imp., for burn'g garbage* 198 Hardware, English & American 201 Ice cave of Decorah, Iowa 196 Inventions, new agricultural 199 Iron, advance in 201 Light, albo-carbon 201 Magnetism, curious facts in 194 Motor, Gary, the* 196 Natural science, charms of 200 Neutral line, Gary's 196 Notes and queries 203 Patent laws 192 Patents, American, recent 194 Pen, stencil, new* 195 People, a strange 195 Phosphorescence 199 Plants protected by insects 201 Pleuro-pneumonia 192 Railway, Vesuvius 200 Reading and eyesight 199 Reading, taste for 193 Regulator, engine, novel* 195 Spain a field for machinery 193 Sponges, glass* 200 Table, ironing, new* 194 Telegraph, writing 196 Telegraph, writing, Cowper's 197 Telegraphy, ocean, progress of 195 Tiller, steam, new* 191 Tree, pottery 200 Vase, Greek, ancient* 199
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TABLE OF CONTENTS OF
THE SCIENTIFIC AMERICAN SUPPLEMENT
NO. 169,
FOR THE WEEK ENDING MARCH 29, 1879.
Price 10 cents. For sale by all newsdealers.
I. ENGINEERING AND MECHANICS.--The Herreshoff Torpedo Boat, recently built at Bristol, R. I., for the British Government. The novelties in the placing of the screw, etc. The Peculiar Boiler. 4 figures.--Improved Hopper Steam Dredger. 2 figures.--The St. Gothard Tunnel.--The Beacon Tower of Lavezzi. 3 figures.
II. ARCHITECTURE.--Bath Abbey Church. Full page illustration.
III. TECHNOLOGY.--The Achison Stone Cutting Machine. 1 engraving.--The Deep Mines of the World.--Shoemakers' Wax.--Gruber's New Method of Germination. 1 engraving.--Improved Process for Treating Wood, etc., for Paper Manufacture.--Bronzing Plaster of Paris Casts.--Sal Soda for Unhairing Hides and Skins.--Sieburger's Paste.--To Tan Lace Leather with Softsoap.
Practical Dyeing Recipes: Blue white zephyr, Scotch blue on