44 AQUATIC MICROSCOPY FOR BEGINNERS. 



8vo., London. — Grififith and Henfrey's "Micrographic 

 Dictionary," 4th edition, 8vo., London. — "Micro- 

 scopical Praxis, or Simple Methods of Ascertaining 

 the Properties of Various Microscopical Accessories," 

 by Dr. Alfred C. Stokes; i2mo., Portland, Conn. — 

 "Manipulation of the Microscope, "by Edward Bausch; 

 2nd edition, i6mo., Rochester, N. Y. — "The History 

 of a Slide," by Dr. F. L. James; 8vo., St. Louis, Mo. 

 — "Le Microscope," by Dr. Henri Van Heurck; 4th 

 edition, 8vo., Antwerp. (An English translation is 

 published in London.) — "The Observer," an. illustra- 

 ted monthly magazine; Portland, Conn. — "The Mi- 

 croscopical Bulletin," a bi-monthly illustrated maga- 

 zine; Philadelphia. — "Journal of the New-York Micro- 

 scopical Society;" quarterly, New York. 



