Vol. VIII 



JULY, 1849. 



No. 22 



Published the first day of every second month, price $5 per year. 



THE 



AMERICAN JOURNAL 



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OF 





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SCIENCE AND ARTS. 



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CONDUCTED BY 





Professor* B. SILLIMAN and B. SILL1MAN, Jr., 



AND 





JAMES D. I) A* \ 



SECOSD SERIES. 



No. 22.— JULY, 1849. 



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NEW HAVEN: 



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FJUXIT&J> FOR THE EDITORS BY B. JL. HAULER 



Printer to YaJ* 'ollege. 



Sold by Day & Fitch, Nem Haven.— Little & Brows, nnd T- Wiley, Jr., /?e*to» 

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