Drawings of fossils and shells made, and museum work done by 

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3Ptr:BX J iC-^.TXoisrs o^ tieiie 



JOHNS HOPKINS UNIVERSITY. 



I. American Journal of Mathematics. S. Newcomb, Editor, and T. Craig, 



Associate Editor. Quarterly. 4to. Volume X in progress. $5 per 

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II. American Chemical Journal. — I. Remsen, Editor. Bi-monthly. 8vo. 



Volume IX in progress. $3 per volume. 



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terly. 8vo. Volume IX in progress. $3 per volume. 



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Monthly. 8vo. Volume VI ready. $3 per volume. 



VI. Johns Hopkins University Circulars. — Containing reports of scientific 



and literary work in progress in Baltimore. 4to. Vol. VII in progress. 

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VII. Annual Report. — Presented to the President by the Board of Trustees, 

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VII. Annual Register. — Giving the list of officers and students, and stating 

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AMERICAN JOURNAL OF SCIENCE. 



Founded by Professor Silliman in 1818. 



Devoted to Chemistry, Physics, Geology, Physical Geography, Mineralogy, 

 Natural History, Astronomy, and Meteorology. 



Editors : James D. Dana aud EIdward S. Dana. 



Associate Editors: J. P. Cooke, Jr., George L. Good ale, and John Trow- 

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