AMERICAN NATURAL HISTORY. 



15. 



SMITH (J. Lawrence). On the geology of Emery and Corundum. — 

 Proc. Amer. Assoc. Adv. Sc. VI. 1852, 274. (132 



TAYLOR (Richard). Substance of notes made during a geological 

 reconnaissance in the auriferous porphyry region next the 

 Caribbean Sea, in the Province of Veraguus and Isthmus 

 of Panama. — Journ. Acad. Nat. Sc. Philad. New Ser. II. 

 1852, 81. PI. X. (133 



Taylor (Richard). -Go <«. Mtm of asphatum at Hillsborough, in 

 Albert County, Province of New Brunswick. — Proc. Amer. 

 Philos. Soc. 1851, 241. (189 



TESCHEMACHER (J. E.). On the resinous nature of the coal.- — 

 Amer. Journ. Sc. 2d Ser. XIV. 1852, 70. (134 



Schmidtl (. . .). Caves of Adelsberg, Magdalena, and Planira in 

 the Tyrol. (Bull. Soc. G-eol. Fr. 1851, 158).— Amer. 

 Journ. Sc. 2d. Ser. XIII. 1852, 267. (135 



Wells (D. A.). On the origin of stratification.-— Proc. Amer. 



Assoc. Adv. Sc. VI. 1852, 297. (136 



Whittlesey (Charles). G-eological report on that portion of Wis- 

 consin bordering on the south shore of Lake Superior. 

 Surveyed in the year 1849, under the direction of David 

 Vale Oiven.— Oiven's Rep. 1852, 421. (137 



Notice of an earthquake at Carthagena, New Grenada. 



—Quart. Journ. Geol. Soc. L. VII. 1851, 238. (139 



Agassiz (L.). G-eological position of the coal of Marsfield, Massa- 

 chusetts.— Proc. Amer. Acad. II. 1852, 270. (140 



Desor (B.). On the drift period.— Proc. Bost. Soc. Nat. Hist. IV. 

 1852, 180. (141 



Desor (B.). Remarks on fossil rain-drops. — Proc. Bost. Soc. Nat. 

 Hist. IV. 1852, 131 and 132. (142 



Jackson (C. T.). On the drift.— Proc. Bost. Soc. Nat. Hist. IV. 

 1852, 181. (143 



