LEFFEL WATER WHEELS,

[Illustration]

With recent improvements.

Prices Greatly Reduced.

8000 in successful operation.

FINE NEW PAMPHLET FOR 1879,

Sent free to those interested.

James Leffel & Co,

Springfield, O.

110 Liberty St., N. Y. City.

A PLANING MILL OUTFIT FOR SALE

very low for cash. Will sell all together or each machine

separate. All first-class machines, good order.

J. H. KERRICK & CO., Indianapolis, Ind.

BOGARDUS' PATENT UNIVERSAL ECCENTRIC MILLS

--For grinding Bones, Ores, Sand, Old Crucibles,

Fire Clay, Guanos, Oil Cake, Feed, Corn, Corn and

Cob, Tobacco, Snuff, Sugar, Salts, Roots, Spices,

Coffee, Cocoanut, Flaxseed, Asbestos, Mica etc.,

and whatever cannot be ground by other mills.

Also for Paints, Printers' Inks, Paste Blacking, etc.

JOHN W. THOMSON, successor to JAMES BOGARDUS,

corner of White and Elm Sts., New York.

$3 PRINTING PRESS

[Illustration: The Excelsior]

Print cards labels &c. (Self-inker $5) 13 larger sizes

For business or pleasure, young or old. Do your own advertising

and printing. Catalogue of presses, type, cards,

&c., for 2 stamps. Kelsey & Co. Meriden, Conn.

HEKTOGRAPH

Patents for the process of Dry Copying have been issued to us, dated May

18 and June 1, 1880. The Hektograph is now the only gelatine copying pad

which can be used without infringing.

All infringements will be prosecuted to the full extent of the law.

HEKTOGRAPH CO., 23 and 24 Church Street, New York.

Scientific American, Vol. XLIII.—No. 1. [New Series.], July 3, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 145 / 157 题