^0 DONS. — SÉANCE DU 19 MARS 1900 



— Memoirs. XXIII, î. 



Des Moines. Geological Survey of lowa. IX. Ann. rep. 1898. 



Bain : Geology of Carroll county, p. 51-109. — T. -H. Macbride : Geology of IJum- 

 boldt couniy, p. 109-115. — W. Beyer : Geology of Story county, p. 15.5 i!47. — A. 

 Udden : Geology of Muscatine county, p. 247-389. — H. Norton : Geology of Scott 

 county, p. 389-521. 



Minneapolis. The Am. Geologist. XXXIV, 4-5, Oct.-Nov. 1899. 



Gresley ; Possible new coal plants in coal, p. 199-205, 4 pi. — Marsden Manson : 

 The évolution of cliniales, p. 205-210. — Wliiteaves : The devonian system in 

 Canada, p. 210-240. — O.-H. Hershey : The gold beai'ing formation of Stephenson 

 county, Illinois, p. 240-244. — G.-P. Merrill : A discussion on the use of the terms 

 rock-weathering, serpentinization and hydrometamorphism, p. 244-250. — Sardeson : 

 A new Cyslocrinoidean species from the Ordovician p. 263-276, 1 pi. — Keyes : On 

 sti-atification planes, p. 294-300. — E. Wood : Eruption of Mauna-Loa 1899, p. 300- 

 304, 1 pi. 



New-Haven. The Amer. Jouru. of Se. (4), IX, 51, Mars 1900. 



Beecher : Conrad's types of Syrian fossils, p. 176-179. — H. -S. Williams : Silurian- 

 Devonian boundary m Norlh America, p. 203-214. 



New-York. Science. (2), XI, 270-271, 2, 9 Mais 1900. 



— Americ. Mus. of Nat. Se. Bull. XI, 2, 1899. 



Whilfield and Hovey : Catalogue of the types and ligured speciuiens in Ihe paUeon- 

 lological collection of the geological department, Amer. Mus. of Nat. Hist., 186 p. 



— Memoirs. I, 4, 5. 



H. -F. Osborn : A complète Mosasaur skelelon, osseous and cartilagineous, p. 167- 

 1,^8. _ H -F. Osborn : A skelelon of Diplodocus, p. 191-214, 8 pi. 



Philadelphie. Trans. of. the Am. Philos. Soc. XX, 1. 



(i. Baur and E.-C. Case : The hislory of the Pelycosauria, vvith u description 

 of the genus Dimetrodon Cope, 62 p., 3 pi. 



— Proc. Ac. of N. S. 1899, 2. 



Washington. Smithsoniau miscellaneous Collections, 1173. 



Grande-Bretagne. — Londres. R. Soc. Proc. March 1900. 



Indes Anglaises. — Calcutta. Mem. Geol. Surv. of Inclia. 

 XXVIII, 1, 1899. 



C. Diener : Notes on the geological structure of the Chitichun région, p. 1-97. — 

 R.-D. Oldhani : A note on the AUali-bund in the north-west of the Rann of Kuchh, 

 p. 27-30, 1 pi. — G.-E. Grimes ; Geology of parts of the Myingyan, Mugwe and 

 Pakokku districts, Burma, p. 30-71, 2 pi. — H. Sinith : The geology of the Mikir 

 hills in Assam, p. 71-95, 1 pi. — H. Hayden : On the geology of Tirah and the 

 Bazar Valley, p. 95-117, 2 pi. 



— Paleontologia indica. 



(15), I, 2 : C. Diener : Anthracoilthic los&iis ci Kashmir and Spiti, 95 p., 8 pi. — 



