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Bulletin Wisconsin Xatiiral History Society. [Vol. 5, No. 2. 
functionally active by immersion in certain solutions of alcohol, 
ether or ammonium chloride. 
2. That the number of eggs which divide after fertilization 
by active spermatozoa immersed in the various solutions, is 
dependent upon the time of immersion. 
3. That abnormal development is produced by a prolonged 
immersion of the spermatozoa in the solutions used. 
4. That prolonged immersion in weak solutions tends to have 
the same effect as a shorter immersion in strong solutions. 
