VOL. IV. 



NO. 10. 



AUGUST, 1898 



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U(ELJ?1 



A Journal Devoted to Research in Natural Science. 



RA TES: — -fo cts. per year to all countries, in advance. Sinf^ie numbers, j cts. 



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



Jl 



