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AMERICAN ,. J.Q tfJR. M A I* 



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SCIENCE AND ARTS. j ui[ 



CONDUCTED BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



Prof. Chem., Min,, &c in Yale Coil. ; Cor. Mem. Soc. Arts, Man. and Com. ; and 



For. Mem. Geol. Soc, London; Mem. Roy. Min. Soc, Dresden; Nat Hist 



Soc, Halle; Imp. Agric Soc, Moscow; Hon. Mem. Lin. Soc, Paris; 



Nat Hist Soc. Belfast, Ire. ; Phil, and Lit Soc. Bristol, Eng. ; 



Mem. of various Lit. and Scien. Soc. in America. 



VOL. XXVI.— JULY, 1834 



NEW HAVEN: 



Published and Sold by HEZEKIAH HOWE & Co. and A. H. MALTBV. 



Baltimore, E. J. COALE & Co.— Philadelphia, J. S. LITTELL and CAREY fc 

 HART.— JVew Fork, G. &C.& H. CARVILL.— Boston, HILLIARD, GRAY, 

 LITTLE & WILKINS. 



PRINTED BY HEZEKIAH HOWE A CO 



