. 160 Editorial J\otices. [Jan., 



American Journal of Science is published on the 1st of Janu- 

 ary, March, May, July, September and November of each year, 

 in Nos. of 150 pp. each, making 2 vols, a year, fully illus- 

 trated with engravings, and containing a comprehensive bulletin 

 of scientific intelligence. Subscriptions $5 per year, single Nos. 

 87^ cents. Remittances to be forwarded to B. Silliman, New 

 Haven, Conn. 



The Journal is the only one in this country which is devoted 

 purely to science. It has been sustainad by great effort, and it 

 deserves a wider circulation. The gentlemen w^ho conduct it 

 stand first in community for their intelligence and zeal in pro- 

 moting the cause of science in this country. 



ERRATA. 



In the signature pages for vol. //, read ///. 

 Page 12, 8lh line from the lop, for masses read mosses. 

 Page 16, 3d line from the bottom, for losses read bases. 

 In part of the edition, in note p. IS, last line, for presented 

 read preserved, and for heat read peat. 



