VOL. V. 



NO. 5. 



MARCH. 1899. 



nt{j?\ 



A Journal Devoted to Research in Natural Science. 



RA TES: — -^o its. per year to all countries, in advance. Single numbers , 5 cts. 



Published on the i jfh of each month by Museum Publishing Co., Albion, N. Y. 



