London: Whittaker & Co. Ave-Maria-lane.


17, Ave-Maria-Lane, London.

Messrs. Whittaker and Co. have the pleasure to announce the recent publication of the following Works

By Mr. ANDREW PRITCHARD.

A HISTORY of ANIMALCULES, with Five hundred Engravings. Price 5s.

MICROSCOPIC ILLUSTRATIONS: with Descriptions of the Achromatic, Polarizing, Dissecting Microscopes, &c. with ample Instructions for use. A new edition, enlarged, price 4s. 6d.

This work is the only practical treatise on the use of modern microscopes extant.

MICROGRAPHIA; containing Practical Essays on the Solar and Oxyhydrogen Microscopes, Eye-pieces, Micrometers, &c. Price 8s. 6d.

A LIST of 2,000 MICROSCOPIC OBJECTS; with Remarks. Second edition, price 1s.