INDEX TO VOLUME ig 



625 



Page 



Helland, A., cited on glacial erosion. . . 21 

 Hell Gate railroad bridge, New York 



citv, Borings for, Rocks disclosed 



by 164-165 



reefs, Rocks at, Character of. 165-166 



Hexxiger flats, Sierra Madre range, 



Quartz-monzonite from 191 



Hermosa formation, Age of 452, 479 



, Fossils of 452 



, Occurrence of 455 



, Stratigraphic position of 496 



.Unconformity between Dolores 



formation and 453-459 



Herod gravel, Age and correlation 



of 388, 389 



, Character of 381-382 



.Conditions of deposition of 381 



, Correlation of 386-3S7 



.Geographic distribution of 390 



, Name of, origin of 381 



, Sections showing 371, 



376, 377, 380, 382 



, Thickness of 381 



Herodotus, cited on asbestos 430 



Hershey, O. H., cited on geology of San 



Gabriel mountains 187-1S8 



Hicoria biacumiiiata, Description of. . . 512 



, Figure of 510 



Hicoroides, Description of 513 



— anyulata, Description of 513 



, Figure of 513 



— eUipsoidea, Description of 513 



, Figure of 513 



Hice, R. R., enrolled as life member. . . 535 

 High bridge, Harlem river, New York, 



Rock beneath 159 



, Section at, Figure 



showing 159 



196, 295, 304, 310, 314, 315, 319 



Hill, R. T.. cited on changes of level in 



the West Indies 273 



West Indian archipelago 259 



— ; Pele and the evolution of the Wind- 

 ward archipelago 243-288 



— , Title of paper by 589 



Hillebraxd, W. F.. Chemical analyses 



by 113, 



Hills, R. C, Badito formation named 



by 491 



— , cited on fossils of the Dolores for- 

 mation Colorado 468-469 



Stratigraphy of Uncompahgre 



valley, Colorado 454 



— , Fossiliferous Red beds on Grand 



river observed by 488 



— , Fossils of Red beds of southwestern 



Colorado found b^ 450-451 



Hitchcock, C. E., Aia by 91 



Hitchcock, C. H., Title of paper by.. 587 



Hitchcock, Edward, cited on geology 



of Belvidere mountain, Vermont.. 424 



lignite deposit at Brandon, 



Vermont 499, 500, 501, 502, 503 



serpentine deposits of Ver- 

 mont 420, 421 



Hobbs, W. H. ; Origin of the channels 

 surrounding Manhattan island, New 



„ York 151-182 



Hollick, Arthur, Record of remarks 

 . by 580 



Holmes, W. H., Explorations in Colo- 

 rado by 476 



— , Red beds of southwestern Colorado 



observed by 450 



tfOLYOK& Reservoir t^pe of inclusions in 



Holyolie trap sheet, Features of. 95-97 



— trap sheet, Botryoidal glass in.. 104-105 



, Diabase in 101-103 



, Extent of 92 



, Gabbroid diabase in 102-103 



Page 

 IIoiaoke trap sheet, Glass bearing por- 



phyritic diabase in 101-102 



, Holyokeite base in 106 



, Inclusions in, Types of 92-97 



, Lithophysae in 105-106 



, Map and section showing.... 126 



, Palagonite in 103-104 



, Plumose diabase in 99-101 



— and palagonite from, Pa- 

 per on, by B. K. Emerson 91-130 



, Rock specimens from. View 



of 126 



, Schlieren in 98-103 



— , Spha?rocrystals in 105-106 



, Spherulites in botryoidal glass 



in 105-106 



Holyokeite, Analyses of 113, 114 



— , Diagram showing mineral constit- 

 uents of 130 



— . Dikes of, in Holvoke trap sheet. 107-103 



— .Formation of, Theory of 117-121 



— , Rock associated with 96 



— , Thin sections of, Figures showing. 129 



Homotaxis, Use of term 138-140 



Hoxeoye Falls, New York, Cornifer- 



ous limestone exposed at 52 



Hopkins, T. C, Title of paper by 574 



Horan quarry, Medina, New York, 



View at 52 



Horxblexde-diorite-gxeiss from San 



Gabriel mountains, Character of 200-202 

 Horxblexde-gabbro from San Gabriel 

 mountains, California, Character 



of 197-198 



Horxblexde-gxeiss of P'edmont Penn- 

 sylvania, Occurrence and charac- 

 ter of 319-320 



Horxblexde-schist from San Gabriel 



mountains, California, Character of 203 



Horxblexdite, Analyses of 197 



Hovey, E. O., appointed on Auditing 



Committee 540 



— , Bibliography of literature of Mont 



Pele by, Reference to 245 



— ; Boiling lake of Dominica [ab- 

 stract] 570-571 



— , cited on sulphuric exhalations of 



Mont Pele 252 



— ; Present condition of Mont Pele 



[abstract] 566-569 



— , Record of remarks by 571 



— ; Soufriere of Saint Lucia [ab- 

 stract] 569-570 



Howe, Erxest and Whitman Cross, 

 Red beds of southwestern Colorado 



and their correlation 447-498 



, Title of paper by 589 



Howell, E. E., Jurassic ( ?) fossils dis- 

 covered in Shinarump group of 



southern Utah by 488 



Hudsox river, channel of, at New York 



city, Origin of 180-181 



tunnel (McAdoo tunnel), Section 



across river at 177 



of Pennsylvania Railroad Com- 



panv at New York, Rocks disclosed 



by borings for 176-178 



, Section across river 



at 177 



Hulbertox, New York, View in quarry 



at 52 



Huxt, T. S., cited on increase of bulk 

 incident to passage of olivine into 



serpentine 134 



— , Work on Vermont schists by 424 



Hurox river, Michigan, Stream-formed 



hanging valley on 77 



Hutton, W. R., Aid rendered by 158 



— , cited on rock beneath Harlem river, 



New York 158 



