VOL. V. 



NO. 6. 



APRIL, 1899. 



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UcEUTH 



A Journal Devoted to Research in Natural Science. 



RA TES: — ,0 cts. per year to all countries, in advance. Single numbers, ,' cts. 



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



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