Aquatic Microscopy 



FOR BEblNNERS 



OR 



Common Objects from the Ponds and 

 Ditches 



BY 



Dr. Alfred C. Stokes 



Author of "A Contribution toward a Natural History of the Fresh- 

 water Infusoria of the United States;" "Analytical Keys to 

 the Genera and Species of the Fresh-water Algae and 

 the Desmidieae of the United States;" "Micro- 

 scopical Praxis," etc. 



THIRD KDITION 



ILLUSTRATED 



" The microscope is not a mere extension of a faculty; it is a 

 new sense.'' .; 



" The microscope, frequently and intelligently used, makes 

 A^ature pellucid." 



PORTLAND, CONN.: 



EDWARD F. BIGELOW 



1896 



