PRICE 25 CENTS.

Sample by mail on receipt of price.

A liberal discount to the trade.

No. 1--"Post Office," weighs to 8 ozs.

" 2--"Pocket," weighs to 8 lbs.

Howard Manufacturing Co., Box 2295, New York.

* * * * *

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.

* * * * *

THE New York Ice Machine Company, 21 Courtland St., New York, Booms 54,

55. LOW PRESSURE BINARY ABSORPTION SYSTEM Machines Making ICE AND COLD

AIR. Low Pressure when running. No pressure at rest. Machines guaranteed

by C. H. Delamater & Co.

* * * * *

[Illustration]

Our new Stylographic Pen (just patented), having the duplex

interchangeable point section, is the very latest improvement. THE

STYLOGRAPHIC PEN CO., Room 13, 169 Broadway, New York. Send for

circular.

* * * * *

Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 160 / 165 题