This is a very elementary book, giving very simple directions for using the Microscope, and for collecting, preparing and mounting objects.


How to Use the Microscope.

A Simple and Practical Book, intended for beginners. By John Phin, editor of “The American Journal of Microscopy.” Second Edition. Greatly Enlarged, with 50 illustrations in the text and 4 full-page engravings printed on heavy tint paper. 12mo., Neatly bound in Cloth, Gilt Title. 75 cents.


The Microscope.

By Andrew Ross. Fully Illustrated. 12mo., Cloth, Gilt Title. 75 cents.

This is the celebrated article contributed by Andrew Ross to the “Penny Cyclopædia,” and quoted so frequently by writers on the Microscope. Carpenter and Hogg, in the last editions of their works on the Microscope, and Brooke, in his treatise on Natural Philosophy, all refer to this article as the best source for full and clear information in regard to the principles upon which the modern achromatic Microscope is constructed. It should be in the library of every person to whom the Microscope is more than a toy. It is written in simple language, free from abstruse technicalities.


Diatoms.