394 General Notes. [May, 



The Domain of Physiology, or Nature in thought and language. By T. Sterry 

 Hunt, LL.D. 8vo, pp. 27. Boston, 1882. From the author. 



A Revision of the Cis-Mississippi Tertiary Pectens of the United States, pp. 16. 

 Remarks on the Moduscan . dia and Pecehiolia, pp. 12. 



Proceedings of the United States National Museum. Washington, 1S82. 



!v lam D.Dana Ss , . S > x ,i m:1 , C u Extract from the American 



ournal of Science. New Haven, 1881. From the author. 



on E. v. Mojsisovics und M. Ncumavr. Vol.1, Part I and 11, 4 to, pp. 70, 13 

 lates. Wien, Jan., 1882. From the publishers. 

 Die Stegocephalen aus den Rothliegenden des Plauerschen Grundes bei Dresden. 



esden, 1882. Dresder 



dem Kalke des Rothliegenden von Niedei 

 )resden. Dr. II. B. Geinitz und Dr. J. Deic 



rg. 8vo, pp, 16, plate. Hamburg, 1882. From the author. 



n- de I/IIistorie D'une Beleie ou La Catologie il y Cincpiante ans. 



tonce a la Seance publique de la Classe des Sciences. Par M.P.-J. 



8vo, pp. 34, plate. Brussels, 1882. From the author. 

 < M :ml>. s de 1 1 S )C iete Geologique de France, an ire Fevrier, 1882. 



•.-<o. Transactions Xo. 1, 8vo, pp. 64.] 

 Transactions No. 2. 8vo, pp. 44, plate, with the address of Pre. 



GENERAL NOTES. 



BOTANY. 1 



The Study of Lichens in North America.— The interesting 

 plants which botanists term lichens, but which the non-botanical 

 are wont to call " mosses " or " tree mosses," those greenish-gray 

 or grayish-green, sometimes blackish or brownish, growths on 

 bark, boards, rails and rocks are likely to acquire a new interest, 

 and to be much more studied than they have been heretofore. 

 •Edited by Prof. C. E. Bessey, Ames, Iowa. 



