INDEX 565 



PAGE 



Halichondrites confusus, named by Dawson 270 



Dawson, described 269 



elissa Walcott, described 270 



figured, pi. 60, fig. 1; pi. 61, figs. I, la 334, 335 



Hamptonia Walcott, described 296 



bowcrbanki Walcott, described 297 



figured.pl. 76, fig. 3." pl- 77, fig- 1 5 pi- 78, figs. 1, KX..350, 351, 352 



Harrington, B.J 301 



Hazelia Walcott, described 281 



conferta Walcott, described 283 



figured, pl. 72, fig. 3 346 



delicatula Walcott, described 284 



figured, pl. 70, figs. 1, la-g; pl. 90, figs. 2, 2a, 4 344, 364 



? grandis Walcott, described 285 



figured, pl. 71, fig. 2 345 



mammillata Walcott, described 286 



figured, pl. 90, figs. 3, 3a 364 



nodulifera Walcott, described 287 



figured, pl. 71, figs. 3, 2>a-b 345 



obscura Walcott, described 287 



figured, pl. 71, figs. 1, xa 345 



palmata Walcott, described 282 



figured, pl. 69, figs. I, la-c; pl. 76, fig. 2 343, 350 



Heart 427 



Hepatic glands 426 



Heteractinellida Hinde, sub-order described 325 



Hexactinellida O. Schmidt, order characterized 301 



Hicks, Mr. Henry, on Trilobites of Wales 120 



Hinde, Dr. George J 276, 292, 301, 304, 305, 308, 322, 323 



Hitka formation 22 



Holmia rowei Walcott 431 



Holtedahl, Dr. Olaf 480, 481, 523, 526 



Hormogoneae, order described 225 



Hormotoma lamus Walcott 472 



" Horse Shoe " crab, trails 175 



Huenclla abnormis Walcott, compared 520 



billingsi Walcott, compared 517, 518 



hera, new species, Upper Cambrian, compared 521 



described 520 



figured, pl. 119, fig. 10 547 



icetas, new species, Ozarkian, compared 521 



described 520 



figured, pl. 120, figs. 1-3 458 



juba, new species, Ozarkian, described 521 



figured, pl. 119, figs. 11-13 547 



orientalis Walcott, compared 521 



simon, new species, Upper Cambrian, compared 522 



described 521 



figured, pl. 1 18, figs. 8, 9 546 



sp. undt 473 



