PUBLICATIONS 



IX 



Brochures. Pa 



Upper and Lower Huronian in Ontario. 

 A. P. Coleman 107 



Volcanics of Neponset valley, Massachu- 

 setts. F. Bascom 115 



Geology of the Wichita mountains. 

 H. F. Bain 127 



Eelative ages of the Kanawha and Alle- 

 ghany series as indicated by the fos- 

 sil plants. D. White 145- 



Enrichment of mineral veins by later 

 metallic sulphides. W. H. Weed .... 179- 



Fault scarp in the Lepini mountains, 

 Italy. W. M. Davis 207 



Camasland : a valley remnant. G. O. 

 Smith and G. C. Curtis 217 



Tertiary granite in the northern cas- 

 cades. G. O. Smith and W. C. Men- 



DENHALL 223 



Relations between the Ozark uplift and 

 ore deposits. E. Ha worth 231- 



Lower Devonic aspect of the Lower Hel- 

 derberg and Oriskany formations. C. 

 Schuchert 241 



Silurian-Devonian boundary in North 

 America. H. S. Williams 333 



Siluro-Devonic contact in Erie county, 

 New York. A. W. Grabau 347 



Jurassic rocks of southeastern Wyoming. 

 W. C. Knight 377 



Igneous complex of Magnet Cove, Arkan- 

 sas. H. S. Washington 389 



Some coast migrations, Santa Lucia 

 range, California. B. Willis 417 



Glaciation of mount Ktaadn, Maine. 

 R. S. Tarr. . . .... 433 



Vertebrate footprints on Carboniferous 

 shales of Plainville, Massachusetts. 

 J. B. Woodworth 449 



Glacial origin of older Pleistocene in 

 Gay Head cliffs, with note on fossil 

 horse of that section. J. B. Wood- 

 worth 455 



Thomsonite,mesoliteand chabazite from 

 Golden, Colorado. H. B. Patton. . . . 461 



Cambro-Silurian limonite ores of Penn- 

 sylvania. T. C. Hopkins.. 475- 



Contact metamorphism of a basic igneous 

 rock. U. S. Grant 503 



Proceedings of the Twelfth Annual Meet- 

 ing, held at Washington, D. C, De- 

 cember 27, 28, 29, and 30, 1899, in- 

 cluding Proceedings of First Annual 

 Meeting of the Cordilleran Section, 

 held at San Francisco, December 29 

 and 30, 1899. H. L. Fairchild, Secre- 

 tary , 511 



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II-Bull. Geol. Soc. Am., Vol. 11, 1899 



