( 259 ) 



Addrcss delivered al the atwivcrsary meeting of the geohtjical 

 Society of London. On the 20 Tfi. of February , 1852; prefaced 

 by the annoumemerd of the award of the Wollasion palladium' 

 medal and proceeds of the donation fimd for the same year, hy 

 William Hopkins. Londres, 1852; 1 broch. in-8°. 



Fauna antiqua sivalensis , being the fossil zoology of the se- 

 walik Mis, in the north of India. By Hngh Falconer and Proby 

 E. Cautley. Letter- Press. — Part. 1. — Illustrations. — Part. 1 

 lo IX. Londres, 1846 à 4849; 9 broch. in-folio et 1 broch. 

 in-8«. 



On the Electro- chemical polarity of gases. By W.-R. Grove. 

 Londres, 1852; \ broch. in-4°. 



The american journal of science and arts, conducted by pro- 

 fessors B. Sillinian , B. Silliman Junior, and James D. Dana. 

 Second séries. IN°^ 41 and 44. New-Haven ; 2 broch. in-8". 



ERRATA. 



(tOMF, XX, PREMIÈUE PARTIE.) 



Page 152, ligne ôâ , au Heu de Farlhergels , lisez : FolberijiH. 



— — — — — Fatherijelli , — Fothergilli. 



— 153, — 18, — Nemophilla, — Memophila. 



— ol3, — 8el9, — Chaudrac, — Cfiaudmc. 



