The Microscope. 



Published on the 10th of Each Month, 



At 32, 34 and 36 Seitz Block, Detroit, Mich. 



All articles for publication, books for review and exchanges should be addressed to 

 "The Microscope,''' 25 Washington Ave., Detroit, Mich. 



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 lishers, D. O. Haynes & Company, P. O. Box 583, Detroit, Mich. 



No receipt will be sent for subscriptions received unless specially requested. 



Specimens for examination should be sent to the Microscope Laboratory, 25 Washington 

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Vol. VII. DETROIT, AUGUST, 1887. No. 8 



ORIGINAL COMMUNICATIONS. 



NOTICE OF SOME FRESH- WATER INFUSORIA, WITH 



REMARKS ON COLLECTING AND PRESERVING 



THESE DELICATE ANIMALS. 



D. s. kellicott. 



T MAY not be able to say anything that will aid those beginning 

 -*■ the fascinating study of the Infusoria, or other forms of micro- 

 scopic life; I am sure I can say nothing that has not been said regard- 

 ing the matter of collecting, studying and preserving these delicate and 

 minute creatures. "But the readers of The Microscope may not be 

 familiar with what has been put forth for their help ; again my meth- 

 ods and apparatus must present some points of difference from those 

 of others, and, on this account, may possess some interest to those 

 for whom these notes are written. 



Where do the Infusoria abound ? In the running, limpid 

 streams; in the weed-grown, stagnant and forbidding pond ; in 

 springs, wells, and the clear waters of our lakes, both at the surface 

 and far below it ; and parasitically or as commensals they accompany 

 numerous higher animals. Hence, they should be sought for wher- 

 ever moisture is to be found. They occur free-swimming or attached 

 to various objects, for example, the dissected leaves of water-plants, 

 like the bladderworts, hornwort, water-star wort, water-milfoil, and 

 various mosses and algae. Many forms prefer animal hosts ; these 

 may be found as ectoparasites of Hydra, fishes, newts, etc., while 

 many more elect the gills and swimming feet of the cray-tish, or 



