









Vol. IV 



JULY, 1847 



5 



No. 10 



Published thejirst day of every second months price $5 per year. 



THE 



AMERICAN JOURNAL 



OF 



SCIENCE AND ARTS. 



CONDUCTED BY 



Professors B. SILLIMAN axd B. SILLIMAN, Jr., 



AND 



JAMES D. DANA 



SECOND SERIES. 



No. 10.— JI LY, 1847 



NEW HAVEN: 



HAMLEN 



Printer to Yale College- 



Sold by H. Day, New Eaten.— Little & Brown, and ^ ft. S. Jordan, ffosloii,~~€L S. 

 Francis & ( ad Wiley & Putnam, New York.—CA*n& Hart, PAi7a*Mp& 

 R. Hickman* B imnr?, Md— Wiley <fe Putnam, Lcmdm.— -Hector Bossange & 



Paris. — £ ler d xe, /fcfitfr 



2f%€ postage on this Jmtmal fo **y distance is 9<| e& 



