10 J.STANLEY-BROWN INDEX TO VOLUMES 21 TO 30 



Page 

 Allen, E. T., Reference to accurate measurements of chemically pure 



pyrrliotite liy 21. 14S 



— , Role of water in tremolite and certain other minerals, Reference to 31, ^66 



— anil Day, Arthur L. ; Isomorphism and thermal properties of feld- 



spars, Reference to 21, 165, 166 



— , Wright, Fred. Eugene, and Clement, J. K. ; ^Minerals of the com- 

 position MgSiOs. Reference to 21, 166 



Allen, G. M., cited on West Indian mammals 29, O.jT 



Allen, J. H., Geological work in Florida of 25, 174 



Allen, R. C, cited on elliptical greenstone schists 25. 612 



Keweenaw series 27, 94-97 



Alling, H. L. ; Glacial lakes and other glacial features of the central 



Adirondacks 27, 65, 645 



— ; Some problems of the Adirondack Precamhrian 30, 155 



Allorhynchus heteropsis (Winchell), Figure showing and description 



of 21, 509 



— macra ( Hall ) , Figure showing and description of 21, 509 



— n. gen 21, 509 



Alluvial fan deposits of North America, Character and current bedding 



of delta 24, 401 



Altamont moraine, Sioux Falls section of the 23. 150 



Alteration pi'ocesses and products within the Greenville limestone ; A. A. 



Julien 24, 76, 717 



Alternative explanation of the origin of the Saratoga mineral waters ; 



R. Ruedemann 25, 38 



Altitudes and warping in the Ontario basin 27, 243 



Amazonas, Geology of 30, 229 



Ameghino, Florentino, cited on dinosaurs 25, 401 



Amendments to the by-laws 21. 19 ; 22. 52 : 25, 49 



constitution 21. 19 



America, Cenozoic floras of equatorial 29. 129 



— , Geologic work of ants in tropical 21, 450-496, 790 



— , Phosphate deposits of 30, 104 



— , Record of storminess in 25, 499 



— , Tertiary Nassidte of west coast of 28, 227 



American area of storm shifting. Chart of 25, 512 



— arid region. Subdivision of 21, 544 



— Association for the Advancement of Science, Address by .T. S. Diller, 



retiring Vice-President of Section 3 of the 26, 111 



, Affiliation of Cordilleran Section with 26, 132 



— Diphyphylloid corals ; George H. Chadwick 28, 208 



— Geographical Society of New York, Assistance rendered by 2I. 339 



— Geological Society, Organization of 25. 160 



, Questions discussed of organizing 21. 743 



"American Geologist" magazine. Publication of 21, 744 



— geology. Sources and tendencies in 3q, 77 



— Lower Ordovicic formation 27. 555 



— mapping in France ; G. S. Smith 30, 110 



