— 387 — 



of Siliceous Sponges from the Lower Calcareons Grit of Yorkshire (PL VI). 

 54. — R. Lydekker : On the Occurrence of the Striped Hyaena in the 

 Tertiary of the Val d'Arno. 62. — A. W. Stiffe : On the Glaciation of 

 Parts of the Valleys of the Ihelam and Sind Rivers in the Himalaya Moun- 

 tains of Kashmir. 66. — R. N. Worth : On the Igneous Constituents of 

 the Triassic Breccias and Conglomerates of South Devon. 69. — J. Prest- 

 wich : On the Relation ot the Westleton Beds, or Pebbly Sands of Suffolk, 

 to those of Norfolk, and on their Extension Inland ; and on the Period of 

 the Final Elevation and Denudation of the Weald and of the Thanies 

 Valley. Part I. 84. 



11) The Geologie al Magazine, edited by H. Woodward, J.Morris 

 and R. Etheridge. 8°. London. [Jb. 1890. I. -192-.] 



No. 307. Januar 1890. — 0. C. Marsh : The Skull of the Gigantic 

 Ceratopsidae (PI. I). 1. — H. H. Howorth: Did the Great Rivers of Si- 

 beria flow Southwards and not Northwards in the Mammoth Age? 5. — 

 H. H. Ho well : Classification of the Red Rocks in South-East Durhan). 8. 



— W. Whitaker : Coal in the South-East of England. 13. — R. H. Tra- 

 quair : On the Devonian Fishes of Canada. 15. — G. F. Harris : The 

 Geology of the Gironde, France. 22. — W. M. Hutchings : On the Oc- 

 currence of Willemite in a Slag. 31. 



No. 303. Februar 1890. — Eminent Living Geologists, Prof. A. Gei- 

 kie (PI. II). 49. — T. G. Bonney : The Physiographie of the Lower Trias. 

 52. — R. H. Traquair : On a New Genus of Coccosteidae (PI. III). 55. 



— G. W. Lamplügh: On the Yorkshire Boulder-Clay. 61. — T. F. Ja- 

 mieson : On the Climate of the Loess Period. 70. — J. G. Goodchild : The 

 Paste of Limestones. 73. — Fr. Chapman: On Artificial Perlitic Structure. 79. 



12) The American Journal of Science. Edited by J. D. and E. S. 

 Dana. [Jb. 1890. I. -193-] 



Vol. XXXVIII. No. 228. December 1889. — C. A. White- Lower 

 Cretaceous of the Southwest and its relation to the underlying and over- 

 lying formations. 440. — W. H. Dall : Hinge of Pelecypods and its De- 

 velopment, with an attempt toward a better subdivision of the group. 445. 



— R. T. Hill : Relation of the Uppermost Cretaceous Beds of the Eastern 

 and Southern United States. 468. — R. T. Hill and R. A. F. Penrose : 

 The Tertiary Cretaceous Parting of Arkansas and Texas. 468. — W. E. 

 Hidden and J. B. Mackintosh: Description of several Yttria and Thoria 

 Minerals from Llano County , Texas. 474. — 0. C. Marsh : Skull of the 

 Gigantic Ceratopsidae (PI. XII). 501. 



No. 229. Januar 1890. — T. T. Gulick: Divergent Evolution and 

 the Darwinian Theory. 21. — H. S. Williams : Devonian System of North 

 and South Devonshire. 31. — W. H. Seamon : Zinciferous Clays of South- 

 west Missouri and a Theory as to the growth of the Calamine of that 

 section. 38. — J. D. Hawkins : Minium from Leadville. 42. — W. P. Blake : 

 Mineralogical Notes. 43. — F. A. Genth: Contributions to Mineralogy. 47. 



V. ] z* ' 



