Page:Popular Science Monthly Volume 69.djvu/588

 BAUSCH & LOMB Projection Apparatus

The most complete lecture room projector ever produced. Lantern slides and micro- scopic objects shown consecutively without change of light or recentering.

Catalog C on request.

BAUSCH & LOMB OPTICAL CO.

Manufacturers

Microscopes, Photographic Lenses and Shut- ters, Eyeglass Lenses, Fiedl Glasses, etc.

ROCHESTER, N. Y. New York Chicago

Boston San Francisco

Frankfurt a/M Germany

SIGNATURE ON ANY PACKAGE IS A GUARANTEE AS TO PURITY, QUALITY AND FLAVOR.

THERE ARE MANY COCOAS & CHOCOLATES, BUT *dfcw&&

COCOA and CHOCOLATES

ARE ACKNOWLEDGED EVERYWHERE AS BEING SUPERIOR TO ALL OTHERS-

MADE IN THE SAME CAREFUL MANNER AND AS

FRESH - PURE - DELICIOUS

AS -C&p&& WORLD FAMED CANDIES.

QUALITY* PRICE WITHIN THE REACH OF ALL.

YOUR GROCER CAN SUPPLY YOU. ■ INSIST 0)1 GETTIflG 1J.

Fossils, Minerals,

Shells, Mounted Birds and Mammals

For the amateur or advanced collector. Tools and supplies for all kinds of Natural History work. Illustrated catalogue free.

Box 377

A. W.JONES,

Salina, Kansas

THE LOCKE ADDER

'"-.~. £ /-.

The

Modern

Business Necessity -^ CAPACITY 999.98ft.tM '-

The famous Calculating Machine. Enthusiastically endorsed the world over. Rapid, accurate, simple, durable. Two models: ox« idized copper finish, $5.00; oxidized silver finish, $10.00, prepaid in U. S. Write for Free Booklet and Special Offer. Agents wanted.

C. E. Locke Mfg. Co. 182 Walnut St., Kensett, Iowa i

NOW READY

Who's Who in America

For 1906-1907

Thoroughly revised and brought down to date. Contains over 16,000 names and over 2,000 pages.

Sent to any address, charges paid, on receipt of price,

S3. 50.

A. N. MARQUIS & COMPANY,

PUBLISHERS.

324-326 Dearborn Street, CHICAGO, ILL.