CONTENTS.
CHAP. I.
A concise History of the Invention and Improvements which have been made upon the Instrument called a Microscope. [p. 1].
CHAP. II.
Of Vision; of the optical Effects of Microscopes, and of the Manner of estimating their magnifying Powers. [p. 26].
CHAP. III.
A Description of the most improved Microscopes, and the Method of using them. [p. 64].
CHAP. IV.
General Instructions for using the Microscope, and preparing the Objects. [p. 129].
CHAP. V.
The Importance of Natural History; of Insects in general, and of their constituent Parts. [p. 167].
CHAP. VI.
A general View of the internal Parts of Insects, and more particularly of the Caterpillar of the Phalæna Cossus. A Description of sundry miscellaneous Objects. [p. 334].
CHAP. VII.
The Natural History of the Hydra, or Fresh Water Polype. [p. 357].
CHAP. VIII.
Of the Animalcula Infusoria. [p. 415].
CHAP. IX.
On the Organization or Construction of Timber, as viewed by the Microscope. [p. 574].
CHAP. X.
Of the Crystallization of Salts, as seen by the Microscope; together with a concise List of Objects. [p. 600].
CHAP. XI.
An Arrangement and Description of minute and rare Shells. A descriptive List of a Variety of vegetable Seeds, as they appear when viewed by the Microscope. By the Editor. [p. 629].
CHAP. XII.
Instructions for collecting and preserving Insects. A copious List of microscopic Objects. By the Editor. [p. 665].
ADDITIONS. [p. 713].