574 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 



Helen mine, Canada, Geological map of 294 



sections near 296 



, Geology of 297-298 



, Relations of iron ores of, to rock 



basins 300-303 



, Topography of region near 295-297 



valley, Age of rock basins of 303 



, Character of 295 



, Origin of rock basins of 298-300 



Heliophyllum lialli E. and H., Description 



of. 107-108 



Hereon, John, Acknowledgment to 5 



Hershey, O. H., Work of 108 



High Hill copper mines, Virginia, Fig- 

 ures showing shafts at 358 



Hilgard, E. W., Title of paper by 544 



Hill, K,. T., Photographs by, Catalog of 395 



— , Work of 107 



Hillebrand, W. F., Analyses by 365 



Hillers, J. K., Photographs by, Catalog 



of. 385, 386, 387, 398, 408, 423, 424, 429, 433, 



443-444, 447 



Hills, R. C, Title of paper by 542 



Hitchcock, C. H., Title of paper by 538 



— , Work of 103 



Hoangho river, Course and general features 



of 128-129 



Hobbs, W. H., cited on drainage of Connecti- 

 cut , 17 



enlargement of feldspar crystals 522 



Newark system 142, 148 



■ — ; Former extent of the .Newark sys- 

 tem 139-148 



— ; Still rivers of western Connecticut 17-26 



— , Titles of papers by 10, 537 



— , Work of. 103, 106 



Hollick, Arthur, Work of ill 



Holmes, J. A., cited on rocks of the Virgil ina 



copper district 376 



— , Record of remarks by 521 



— , Work of. 105 



Homewood sandstone, Pottsville formation 

 of Maryland, Character and thickness 



of 220 



Hood, mount, Glaciers of. 530 



Hopkins, T. C. ; Lower Carboniferous area 



in Indiana [abstract] 519-521 



— , Photograph by, catalogued 429 



— , Record of remarks by 521 



— , Work of 105 



— and Smallwood, Martin ; Some anticlinal 



folds [abstract] 530 



Horizons of phosphate rock in Tennessee ; 



James M. Safford 14-15 



Hornblende-andesite, Analyses of 305 



Hovey, Edmund Otis; Paleontological col- 

 lections of the geological department of 

 the American Museum of Natural His- 

 tory [abstract] 532 



— , Work of 100 



Hudson formation, Geologic place of. 11, 12 



-, Occurrence and character of. 14 



— phosphate, Fossils contained in 15 



, Geologic place of 11, 12 



Huron limestone, Indiana, Character and 



position of 519, 520 



Hyatt, A., cited on terms nepionic, neanic, 



and ephebic .... 173 



— , Work of Ill 



Hydrographic history of South Dakota ; 



J. E. Todd 27-40 



Idaho, Geologic work in 107 



— , Photographs from, Catalog of. 402-403 



— , Snake River plains of, Geology of. 527 



Iddings, J. P., elected Councillor 487 



— , Photographs by, Catalog of 415, 443 



— , quoted on rocks found near Antonio 



Olyntho, Brazil 84 



— , Work of. 109 



Page 

 Igneous rock inclusions, Photographs of, 



Catalog of. 402 



— rocks, Photographs of contacts of, Cata- 

 log of 453 



Illinois, Photographs from, Catalog of. 403 



Indiana, Bedford limestone in 519, 520 



— , Geological work in 101, 105, 108 



— , Harrodsburg formation in 519, 520 



— , Huron limestone in 519, 520 



— , Knobstone formation in 519, 520 



— , Lower Carbonilerous area in 519-521 



— , Mitchell limestone in 519, 520 



— , Photographs from, Catalog of 403 



Indian Head, Md., Record of well at 210 



Indian territory, Photographs from, Cata- 

 log of 404 



Instituto Geologico de Mexico, Work of 101 



Internal heat of the earth, Distribution 



of 530-531 



Iowa, Devonian fish fauna of 537 



— , Equivalents of the Chemung formation 



in 279-282 



— , Geologic work in 100, lo8 



— , Lime creek beds in 279 



. — , Photographs from, Catalog of 404-400 



— , Spirifer capax beds in 280-281 



— , Sweetland beds of 272,280,281 



Iowa Geological Survey, Photographs by, 



Catalog of 404-406, 432 



Irving, R. D., cited on ancient volcanic 



rocks of the Lake Superior region 370 



enlargement of feldspar crystals 522 



— junction of Lake Superior sandstone 



and Keweenawan traps 7 



Itamaraca, Brazil, Fossils found at 47 



Jackson, R. T., cited on terms nepionic, 



neanic and ephebic : 173 



Jackson, T. M., quoted on copper rocks in 

 Person and Granville counties, North 



Carolina 355 



Jackson, W.. H., Photographs by, Catalog 



of 385, 386, 398, 444 



Jacuma, Brazil, Stratigraphy near 48 



Jaggar, T. A., Work of 107 



James, C. H., Photographs by, Catalog of..... 430 



James river, Quartzite sill on 36 



valley, Pleistocene ice-sheet in 36-37 



Jenney, W. P., Photographs by, Catalog of.. 403 

 Joint Veins [abstract] ; G. K. Gilbert.... 521-522 

 Jollytown coal and limestone, Dunkard for- 

 mation of Maryland, Character and oc- 

 currence of. 231 



Junction of Lake Superior sandstone and 

 Keweenawan traps in Wisconsin ; U. S. 



Grant 0-9 



Jura-Cretaceous rocks, northern Alaska, 



Occurrence and character of. 244-245 



Jurassic period, Orogenic movements dur- 

 ing, in South Dakota 28 



Kamaloop district, Stratigraphic succession 



in 265 



Kanawha black flint, Geological horizon 



of 119-126 



— series, Thickness of 124 



Kansan stage, Maximum extent of ice dur- 

 ing 33 



Kansas, Geological work in.. 102, 106, 108 



Karquinez formation, California, Character 



and thickness of 545 



Keewatin and Laurentide ice-sheets in Min- 

 nesota [abstract] ; A. H. Elftman.... 536-537 

 Keith, Arthur, cited on ancient volcanic 



rocks. 370, 376 



— andesite from Front Royal, Virginia. 364 



' Catoctin belt 375 



Newark system 142 



origin of the Catoctin schist 371 



