VOL ill. 



NO 7. 



MAY, 1897. 



vitun 



C3 



'J^i 



A Journal Devoted to Research in 

 Natural Science. 



RATES: — $1 .00 per year to all countries, in ath'ance. Single numbers, 10 cts. 



Published the Fifteenth of Bach Month by 



MUSEUM PUBLISHING CO.. 



^'alter F. Webb, Manager, 

 ALBION, IV. Y. 



