ijyrus Adier, 

 ibrarian U. S. Nat. -Museum 



YOL. XX. JULY, 1905. 



Established by BENJAMIN SILLIMAN in 1818. 



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Professors ADDISON E. VERRILL, HORACE L. WELLS, 

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Professor GEORGE F. BARKER, of Philadelphia, 

 Professor HENRY S. WILLIAMS, of Ithaca, 

 Professor JOSEPH S. AMES, of Baltimore, 

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FOURTH SERIES 

 YOL. XX— [WHOLE NUMBER, CLXX.] 



No. 115.— JULY, 1905. 



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1905 



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