VOL. IV. 



NO. 8. 



JUNE, 1898. 



U^EUTH 



A Journal Devoted to Research in Natural Science. 



RA TES: — ^o fts. per year to all countries, in advance. Single numbers, •; cts. 



Published on the 1 5th of each month by Museum Publishing Co. .Albion, N. Y. 



