— del Becligy: —On a new Spodumene Locality at Norwich, Mass., b 
ARTWELL, and E. Hircucock, Jr., 264.—Age of the Notainelitic forma- 
tion of the Alps, 265.—On the Geographical Limits of the Chalk Formation, by 
LEopoip von Bucu 
* Zoology. —Contributions to the Natural History of the Acalephe of North Amer- 
= 4 a Acassiz, 272.—On the Structure of Nummulina, by W. B. by ARPEN- 
RZ 
ye ake,, 275, 
2S il Eetelligestié. —On the Negro Races of — ae by M. Ser 
ES: Fabrication of Zinc compounds not intl to health, 276. Auchaliee, 
by Prof. C. Dewxy, 277.—Discovery of the Great me “ Ngami,” of South 
' Africa, 278. —Comparison of Fahrenheit and Cafe pe ota 281.— 
Discovery of-an Infusorial Stratum in Florida, by Prof. J. W. Barrey: On the 
te » Application of Magnetism as a Motive Papin: by R. Hun 0 —Improve- 
ments in the Air-pump, by Mr. Varuey, Jr., 284.—On Peshabrephy on Gla, 
by T. A. Matone, 285.—Lead Statuary, 286.—British Association: Sun 
the 29th and 30th of April, 1840 during aclear sky and quiet weather, by Euren- 
B American Zoological Journal : rise) of the Antarctic Continent : 
E dhscting of the American Association for the Advancement. of Science at New 
aven, 287.—Proceedings of the Adivicas Association for the Advancement of 
‘Science ; third Meeting, held at Charleston, S.C., March, 1850, Editoriz 
notice, With reference to the article on the Electin- noe nae in Volume 
295. Obitua uary.—M. de Blainville, 296.—Christian VIL King f De 
points du litto oral -de 
FAGEs, and Emtue 
Agricoes, Me 
