INDEX. 



Harlech grits (Middle Cambrian), in generalized section tor Eng- 

 land, Scotland, and Wales, listing species and localities... 136 



localities in 318n, 318o, 366b 



Harlech group (Middle Cambrian), locality in 318q 



Harley, England, locality near 3041 



Harpers Perry, West Virginia, locality near 47c 



Hartt, C. F., bibliographic references 18 



Hastings cove, near St. Jolin, New Brunswick, localities at 2s, 2t 



hasiingsensis, see EoortMs. 



HawHns County, Tennessee, localities in 9, 9a, 



12q, 101, 101a, 101b, 102, 102c, 103, 103a, 103b, 104, 

 119, 121, 121a, 122, 122a, 123, 124, 124a, 374b, 374d 



Hayden, F. V., bibliographic reference 18 



species named for 338 



Hayden, F. V. [Meelc, F. B., and], bibliographic references 21 



haydeni, see MicromitTa. 



Hayes, C. W., bibliographic references 18 



species named for 505 



Jiayesi, see Lingulclla. 



Hayward Creek, Massachusetts, locality on 5 



Heart-shaped cavity, defined ' 294 



Heart-shaped pit, shown in figure 374 



Hebert, M., species named for 5O6 



Hebertella, classification of, by Ulrich 3O8 



compared with Dinorthis 320 



cruralium mentioned 309 



Tieberti, see LirtguJcUa. 

 Hebron, see North Hebron. 



Hector, British Columbia, localities near 35c, 



36g, 35h, 57c, 57g, 57k, 57s, 57y, 58z 



Hedemarken, Norway, localities in 8v, 323b, 323t, 324, 324d 



Helena, Alabama, localities near 17b, 56c 



Helena, Montana, Bkellomus politus from, discussed 577 



localities near : 4u, 302s, 340a 



See also Mount Helena. 

 helena, see Lingulclla and Protortlus. 



Hehnersen, Gr^goire de, genus named for 3GS 



Helmersenia, described 3157 



apical foramen in, discussed 367, 3G8 



cardinal area discussed 303 



classification of 321, 322 



evolution discussed 3I8 



evolution of 317 



false cardinal area mentioned 318 



general geographic and stratigraphio distribution of 



the species referred to 99 



general stratigraphio distribution and number of Cam- 

 brian species and varieties of 110 



muscle scars not shown in 312 



niunber of species of, in the different types of sedi- 

 ment 160 



pedicle opening mentioned gig 



surface ornamentation discussed 301, 302 



type species discussed 367, 368, 309 



typespecies "SiphonotTetaladogensis'" 367 



"jcremcjcwi," discussed 368, 369 



ladotf'ensis, described 368 



cardinal area discussed 303 



compared with MickwUzia monilifcra 368 



Siphonotreta verrucosa 367 



discussed 367 



general geographic and stratigraphio distribution 



tabulated 99 



type specimen Cgured PI. LXIII, fig. 7d 



hera,seeAcrothcle subsidua. 



H6rault, France, localities in 342, 342a 



Herefordshire, England, localities in 304, 304a-g 



Herjeidalen, Sweden, locality in 320w 



Heterorthis, classification of, by Ulrich 308 



no Cambrian representatives 320 



Hicks, H., bibliographic references IS 



species named for 756 



Hicks, H. [Salter, J. W., and], bibliographic reference 23 



hicksi, see BilUngsella. 



High Bridge, on Ausable River, New York, locality at 338s 



Highgate Falls, Vermont, localities near 28, 87, 87', 319q 



Highgate Springs, Vermont, localities near 26, 319v, 319y 



MgJilandensis, see BilUngsella. 



Highland Range, Nevada, localities in 30, 31u 



Hillsdale, Montana, localities near 150a, 



153, 153a, 154, 156, 165a, 166a, 167, 158, 158a 



Hillsdale, New York, locality near 367 1 



Himon mine, near Pioche, Nevada, locality at 333a 



Hinge line, defined 294 



HippaTionyx, compared with Nisusia fesiinala 728 



Hipponicharion matihem, stratigraphio position of bowlder con- 

 taining, discussed 454, 684 



Hisinger, W., bibliographic reference IS 



Historical data 13-98 



Hjulsta, Sweden, locality at 320? 



Hobbs, W. E., bibliograpiiie reference 18 



Hof, Bavaria, localities near 303c, 303f 



Hoganas, Sweden, locality at Slip 



Hokes Bluff road, Alabama, locality on 139 



Holden, Utah, locality near 33 1 



Holl, H. B., bibliographic reference IS 



Holland, T. H., acknowledgments 12, 665 



Hollis Creek, Tennessee, locahty on 117c 



Hollybush sandstone, in generalized section for E ngland, Scotland, 



and Wales, listing species and localities 135 



Hollybush series (Upper Cambrian), locality in 304g 



mentioned 559 



Holly Gap, see Mount Holly Gap. 



Hollywood Point, Newfoundland, locality on 6t 



Holm, G., bibliographic reference 18 



Holmia Icjerulfi, association mentioned 598, 600 



Holmia Icjerulfi zone (Lower Cambrian), in generalized section for 

 Sweden, Denmark, Finland, and Norway, listing species 



and localities 146 



localities in 8v, 320o, 320x 



mentioned 473 



Holocephalina, association mentioned 498 



inflaia, association mentioned 498 



Hoist, N. Olof, acknowledgments 12 



Ilolston River, Tennessee, localities near 9a, 104 



Homer, Oklahoma, locality near 12p 



Honaker limestone (Middle Cambrian), in generalized section for 

 Tennessee, Georgia, and Alabama, listing species and 



localities 147 



locality in 2z' 



Honey Creek, Oklahoma, locaUty on 12k 



Honey Creek, Texas, locality near 69 



Hoosac Mountain, Eureka district, Nevada, locality on 206a 



Horn, Oeland Island, Sweden, locality at 390m 



Hornet Spring, Spring Mountain Range, Nevada, locality at 7n 



Hot Springs, Colorado, localities near 335a, 36Db 



House Range, Utah, locahties in 3s, 3t, 3w, 



3x, 3y, 4, 8g, 81, 8k, lOy, lOz, lln-q, llv-y, 14v, 15b, 15c, 30c-e, 

 30g, 30h, 30j-n, 30n', 30o, 30w, 30y, 30z, 31q, 31s, 31t, 31v, 105t 

 House Range section, Utah, in detail, listing included and corre- 

 lated species and localities 153-158 



Houston Coimty , Minnesota, locaUty in 84a 



Howchin, Walter, acknowledgments 12 



Howell formation (Middle Cambrian), in detailed section in House 

 Range, Utah, listing included and correlated species and 



localities 157-158 



localities in 31s, 31v 



Hoyts quarry, Saratoga Springs, New York, locality at 76 



Hradischt, Bohemia, locaUty at 303k 



Hudson, G. H., bibliographic reference , 18 



Hudson, Wisconsin, locahties near 79, 79', 79b, 79s, 328] 



Huene, F. von, bibUographic references 18 



genus named for 805 



Huenella, described 805 



cardinal area discussed 305 



classification of 321, 326 



compared with Clarkella 809 



Syntropliia 799 



evolution discussed 320 



evolution of 317 



general geographic and stratigraphic distribution of 



the species referred to 109 



general stratigraphic distribution and number of Cam- 

 brian species and varieties of Ill 



mentioned 807,809 



number of species of, in different types of sediment . . . 160 



oldest species 807 



shell structure compared with that of Syntrophia 300 



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