CONTENTS 



Page 

 Proceedings of the Tenth Summer Meeting, held at Boston, Massachusetts, 



August 23, ] 898 ; H. L. Fairchild, Secretary 1 



Session of Tuesday, August 23 . 1 



Some features of the Staten Island drift. New York [abstract] ; by 



Arthur Hollick 2 



Stratification of glaciers [abstract] ; by H. F. Reid 4 



Evidences of epeirogenic movements causing and terminating the Ice 



Age ; by Warren Upham 5 



Middle Coal Measures of the western interior coal fields [abstract] ; 



by H. Foster Bain and A. G. Leonard 10 



Note on a method of stream capture ; by A. C. Lane 12 



Magmatic differentiation in rocks of the copper-bearing series 



[abstract] ; by A. C. Lane 15 



Classification of coastal forms [abstract] ; by F. P. Gulliver 18 



Note on Monadnock [abstract] ; by F. P. Gulliver 19 



Register of the Boston meeting. 20 



Tourmaline and tourmaline schists from Belcher hill, Colorado ; by H. B. 



Patton . . 21 



Glacial waters in the Finger Lakes region of New York ; by H. L. Fairchild. 27 



Planation and dissection of the Ural mountains ; by F. P. Gulliver 69 



Our Society ; Annual address by the President, J. J. Stkvenson 88 



Geological structure of the lola gas field ; by Edward Or'i'on 99 



lowan drift ; by Samuel Calvin 107 



Glacial sculpture in western New York ; by G. K. Gilbbrt 121 



Dislocation at Thirtymile point. New York ; by G. K. Gilbert 131 



Ripple-marks and cross-bedding ; by G. K. Gilbert 1 35 



Archean-Cambrian contact near Mauitou, Colorado; by W. 0. Crosby 141 



Lake Iroquois and its predecessors at Ontario ; by A. P. Coleman 165 



Augite-syenite gneiss near Loon lake. New York ; by H. P. Gushing. 177 



Glacial phenomena in the Canadian Yukon district ; by J. B. Tyrrell 193 



Pre-Cambrian fossiliferous formations ; by C. D. Walcott 199 



Loess deposits of Montana ; by N. S. Shaler 245 



Formation of dikes and veins ; by N. S. Shaler 253 



Spacing of rivers with reference to hypothesis of baseleveling ; by N. S. Shaler. 263 



Origin of grahamite ; by J. C. White 277 



Physiography and geology of region adjacent to the Nicaragua Canal route ; 



by C. W. Hayes 285 



Eolian deposits of eastern Minnesota; by C. W. Hall and F. W. Sardeson. . 349 

 Granites of southern Rhode Island and Connecticut, with observations on 



Atlantic Coast granites in genei'al ; by J. F. Kemp 361 



Jurassic formations' of the Black Hills of North Dakota; by N. H. Darton. . . 383 



Jurassic fishes frooi Black Hills of South Dakota ; by C. R. Eastman 397 



(iii) 



