THE AMERICAN JOURNAL, &c. 



TERMS. 



The American Journal, of Science and Arts is published in Quarterly 

 numbers at New Haven, Connecticut, and in two semi-annual volumes of 400 or 

 more pages each. Each number contains at least 200 pages, closely and hand- 

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Remittances should be made, if possible, in Eastern money, but if that cannot be 

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B. & B. SILLIMAN, Editors Am- Journ. Science if Arts. 



New Haven, Jan. I, 1844. 



Complete sets, now 48 vols. , are furnished to order. 



This No. contains 12;^ sheets; postage, under 100 miles, 18| cents ; over 100 

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AGENTS. 



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 For other agencies at home and abroad see the first page. 



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OF THE 



AMERICAN JOURNAL OF SCIENCE. 



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