VOL. II. 



NO. 7. 



MAY, 1896. . 



>.25s&^6^ioov:s&i 



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A Journal Devoted to Research in 

 Natural Science. 



RA TES: — $1.00 per year to all countries, in advance. Single numbers, 10 cts. 



Berlin Agency, K. Friedlander & Sohn, Berlin, N. W, Carlstrasse 11. 

 London Agency, Swann & Co., 1 and 2 Bouverie St., Fleet St., London, England. 



Published the Flfteentta of Bach Month by 

 WALTER F. WEBB, ALBION, N. Y. 



