f / / /-t 



THE- 



AMERICAN JOURNAL 



OF 



SCIENCE AND ARTS. 



CONDUCTED BY 



V 



PROFESSOR SILLIMAN 



AND 



BENJAMIN SILLIMAN, Jr. 



VOL. XLIIL— No. 1.— JULY, 1843. 



FOR APRIL, MAY, AND JUNE, 1843. 



(TO BE CONTINUED QUARTERLY.) 



NEW HAYEN; 



Sold by B. & W. -iiOYY.^.— Philadelphia, CAREY & HART, J. S. LITTELL 

 and DREW «fe -SCAMJMELL, 67 So. Third ^i.- Baltimore, Md., N. HICK- 

 MAN.— .Vew York, CARVILL & Co., No. 108 Broadway, and G. S. SILLI- 

 MAN, No. 49 Wall St.— Boston, C. C. LITTLE & Co. and W. H. S. JORDAN. 

 —London and JVeto York, WILEY & PUTNAM, No. 3o Paternoster Row, Lon- 

 don, and 161 Broadway, Mio York.— Paris, HECTOR BOSSANGE «& Co., 

 No. 11, Quay Yoltmre.— Hamburgh, Messrs. NESTLER & MELLE. 



PRINTED BY B. L. HAMLSN. 



.. — .^^ ,„^ — r-jTwrftimttniiwiffiiwiiWiiBM 



Pubiislied at New Ilaveu, July 6, 1842. 



