INDEX GO MOLOUME A I 
ABSTRACTS: 
Clastic Huronian Rocks of Western Ontario and the Relations between 
Laurentian and Huronian. A. P. Coleman - - - - - 
Note on an Area of Sais a Structure in Western Indiana. George 
H. Ashley - - - - - - - - - - 
Sands and Clays of the Ottawa Basin. R. W. Ells - - - 
Syenite-porphyry Dikes in the Adirondacks. H. P. Cushing - - 
Topography and Glacial Deposits of the Mohawk Valley. A. P. Brigham 
Weathering of Alnoite in Manheim, N. Y. C. H. Smyth, Jr. = = 
Adams, F. D. Laurentian Area, North of St. Lawrence River. Noticed : 
Adirondacks, Syenite-porphyry Dikes in. H. P. Cushing. (Abstract) - - 
Aguilar, R. Bibliografia Geoldgica y Minera de la Reptblica Mexicana. 
Reviewed by H. F. Bain - - - - - - - - - 
American Museum of Natural History, Bulletin. Reviewed by Stuart Weller 
Amphibia, Development and Geological Relations of. R.C. Case - - - 
Analyses, Rock: 276, 378, 381, 382, 386, 387, 388, 484, 485, 487, 499, 793, 
794, 795, 798, 800, 803, 804, 
Arkansas Novyaculite, Notes on. O. A. Derby . - - - - - 
Arkansas, Stratigraphical Equivalents of the Coal Measures of. C. R. Keyes - 
Ashley, Geo. H. Area of Compressed Structure in Western Indiana - : 
A Study of some Examples of Rock Variation. J. Morgan Clements — - - 
Atlas, U. S. Geologic, Folio, 37, Downieville, Cal. H.W. Turner. Reviewed 
U.S. Geologic, Folio 41, Sonora, Cal. H. W. Turner and F. L. Ransome. 
Reviewed - - - - - - - . : - - - 
U. S. Geologic, Folio 42, Bidwell Bar, Cal. H.W. Turner. Reviewed 
U.S. Geologic, Three Forks Folio. A.C. Peale. Noticed : - 
U. S. Geologic, Folio 30, Yellowstone Park. A. Hague, W. H. Weed 
and J. P. Iddings. Noticed - - - - - - - - 
Topographic of U.S. SPE aes megs Henry Gannett. Reviewed 
by W. M. Davis - . - - - - - - 
Atmosphere, Changes in. T. C. Chamberlin - - - - - - - 
Atmosphere, The Influence of Great Epochs of Limestone Formation upon the 
Constitution of the. T.C. Chamberlin - - - . - . 
Aves, Development and Geological Relations of. E. C. Case - - - - 
Bain, H. F.—Editorials: Academies, State, of Science - - - - - 
Carbonic Acid in the Atmosphere . - - - - - 
Omaha and Vicinity, Topographic Map of  - - - - 
859 
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