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.

CONTENTS:

What a Microscope is.—Different Kinds of Microscopes.—Simple Microscopes.—Hand Magnifiers.—The Coddington Lens.—The Stanhope Lens.—Raspail’s Microscope.—The Excelsior Microscope.—Twenty-five cent Microscopes and how to make them.—Penny Microscopes.

Compound Microscopes.—Different kinds of Objectives.—Non-Achromatic Objectives.—French Achromatic Objectives.—Objectives of the English Form.—Immersion Objectives.—Focal Lengths corresponding to the numbers employed by Nachet, Hartnack and Gundlach.

How to Choose a Microscope.—Microscopes for Special Purposes.—Magnifying Power required for different purposes.—How to judge of the quality of the different parts of the Microscope.

Accessory Apparatus.—Stage Forceps, Animalcule Cage, etc.