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.

* * * * *

KNABE PIANOFORTES.

Unequaled in TONE, TOUCH, WORKMANSHIP, & DURABILITY.

Warerooms 112 Fifth Avenue. New York.
204 & 206 W. Baltimore St., Baltimore.

* * * * *

NON-CONDUCTOR COVERINGS, _FOR STEAM BOILERS AND PIPES._

THE RAYMOND M'F'G CO., 642 West 52d St., 108 Liberty St., New York.

* * * * *

POWER SHEARS.

STILES & PARKER PRESS CO., Middletown, Conn.

* * * * *

[Illustration]

DO YOUR OWN PRINTING $3

PRESS prints &c. (Self-inker $4) Larger sizes for larger work. For old
or young. Great money saver. A paying business anywhere for all or spare
time. Send two stamps for a catalogue of all sizes. Presses, Type,
Cards, Paper &c., to the Manufacturers KELSEY & CO., Meriden, Conn.

* * * * *

The Asbestos Packing Co., Miners and Manufacturers of Asbestos, BOSTON,
MASS., OFFER FOR SALE:

PATENTED ASBESTOS ROPE PACKING,
" " LOOSE "
" " JOURNAL "
" " WICK "
" " MILL BOARD,
" " SHEATHING PAPER,
" " FLOORING FELT,
" " CLOTH.

* * * * *

PROSPECTUS OF THE Scientific American FOR 1881.

The Most Popular Scientific Paper in the World.

VOLUME XLIV. NEW SERIES.

Only $3.20 a Year, including postage. Weekly, 52 Numbers a Year.

This widely circulated and sple