VOL. VI. 



NO. 2 Whole number 62. 

 DECEMBER, 1899. 



11EU7H 



A Journal Devoted to Research in Natural Science. 



RA TES: — 50 cts. per year to all countries, in advance. Single numbers, 3 cts. 



Published on the 15th of each month by Museum Publishing Co., Albion, N. Y. 



