SPARE THE CROTON AND SAVE THE COST.

Driven or Tube Wells furnished to large consumers of Croton and

Ridgewood Water. WM. D. ANDREWS & BRO., 235 Broadway. N. Y., who control

the patent for Green's American Driven Well.

* * * * *

WOOD WORKING Machinery. Celebrated "Schenck" Planers and Matchers.

20,000 ft. flooring, 45,000 ft. surfacing per day. Re-sawers, Moulders,

Tenoners, Scroll Saws, etc. H. B. Schenck, Successor to Jno. B.

Schenck's Sons, Matteawan, N. Y.

* * * * *

CARY & MOEN STEEL WIRE OF EVERY DESCRIPTION AND STEEL SPRINGS. 234 W. 29

ST. NEW YORK CITY

* * * * *

"The 1876 Injector."

Simple, Durable, and Reliable. Requires no special valves. Send for

illustrated circular.

WM. SELLERS & CO., Phila.

* * * * *

Shafts, Pulleys, Hangers, Etc.

Full assortment in store for immediate delivery.

WM. SELLERS & CO., 79 Liberty Street, New York.

* * * * *

_Two New and Important Books._

SOAP AND CANDLES, STARCH, DEXTRINE, and GLUCOSE. IN PRESS.

A Technical Treatise on Soap and Candles, with a Glance at the Industry

of Fats and Oils. By R. S. Cristiani. Fully illustrated. 500 pages 8vo,

handsomely printed on fine paper.

_Subscriptions will now be received at $6.00 per copy, payable on

delivery._

A Practical Treatise on the Manufacture of Starch, Dextrine, and

Glucose. Illustrated by about 75 engravings. 300 pages 8vo, handsomely

printed on fine paper.

_Subscriptions will now be received at $3.50 per copy, payable on

delivery._

HENRY CAREY BAIRD & CO., Industrial Publishers, Booksellers, and

Importers, 810 Walnut Street, Philadelphia.

* * * * *

[Illustration]

WITHERBY, RUGG & RICHARDSON, Manufacturers of Patent Wood Working

Machinery of every description. Facilities unsurpassed. Shop formerly

occupied by R. Ball & Co., Worcester, Mass. Send for Catalogue.

* * * * *

$72 A WEEK. $12 a day at home easily made. Costly outfit free. Address

True & Co., Augusta, Me.

* * * * *

Superior Wood Working Machinery, principally for Cabinet, Piano, and

Piano Action Makers. Shafting, Pulleys, and Hangers. P. Pryibil, 461 to

467 W. 40th St., New York.

* * * * *

Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 111 / 165 题