weeks] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1895. 107 
Paleontology — Continued. 
Pleistocene — Continued . 
Fossil Ostracoda from Canada, Jones, T. R., 
240. 
Fossil vertebrata from Port Kennedy, Pa., 
Cope, 95. 
Glacial deposits near Toronto, Coleman, 88. 
Inter-Glacial climatic conditions, Dawson, G. 
M., 113. 
Neocene of California, Ashley, 13. 
Pleistocene Mammalia from Louisiana, Cope, 
94. 
Miscellaneous. 
Affinities and classification of dinosaurian 
reptiles, Marsh, 312. 
American bison in Pennsylvania, Rhoads, 
394. 
American fossil Brachiopoda, Schuchert, 418. 
Bibliography of North American Paleontol- 
ogy, 1888-1892, Keyes, 252. 
Brachiocrinus and Herpetocrinus, Bather, 31. 
" Cephalopod beginnings," Clarke, J. M., 80. 
Critical periods in the earth's history, Law- 
son, 288. 
Daimonelix and allied fossils, James, 236. 
Early Protozoa, Matthew G. F., 318. 
Evidence of the animal nature of Eozooncana- 
dense, Dawson, J. W., 117. 
Exploration of Irwin's cave, Pennsylvania, 
Mercer, 333. 
Growth and development of Diplograptus, 
Ruedmann, 404. 
Larval stages of trilobites, Beecher, 40. 
Migration of marine invertebrates, Smith, 
J. P., 441. 
Mode of occurrence of Eozoon canadense, 
Bonney, 49. 
New or little-known extinct vertebrates, Wil- 
liston, 543. 
On the genus Nanno Clarke, Hyatt, 232. 
Opening address, Grant, C. C, 172. 
Osteology and relations of Protoceras, Scott, 
421. 
Osteology of Agriochcerus, Wortman, 571. 
Paleontology of Missouri, Part I, Keyes, 257. 
Paleontology of Missouri, Part II, Keyes, 258. 
Reptilian order Cotylosauria, Cope, 93. 
Revision of American fossil cockroaches, 
Scudder, 427. 
Revision of the families of the loop-bearing 
Brachiopoda, Beecher, 42. 
Supplement to the bibliography of the Paleo- 
zoic Crustacea, Vogdes, 507. 
The nature of Palaiotrochis, White, C. A., 536- 
Validity of some fossil species of Lirioden- 
dron, Holm, 227. 
Ventral structure of Triarthrus, Beecher, 39. 
Zoological position of trilobites, Barnard, 29. 
Genera and species described. 
Acanthosphaera, Matthew, G. F., 318. 
Acer 
pleistocenieum, Dawson, G. M., 113. 
trilobatum productum ( Al. Braun) Heer, 
Knowlton, 270. 
Acervularia davidsoni Edwards and Haime, 
Keyes, 257. 
Achtheres percarum, Beecher, 40. 
Paleontology— Continued . 
Genera and species described — Continued. 
Acidaspis 
halli Shumard, Keyes, 257. 
tuberculata, Beecher, 40. 
Acontheus, Beecher, 40. 
Acrothele 
matthewi Hartt, Matthew, 319. 
var. costata n. var., Matthew, 319 
Acrotreta gemmula, Matthew, 319. 
Actinoceras, Hyatt, 232. 
Actinocrinus Miller, Keyes, 257. 
albersin. sp., Miller and Gurley, 346. 
foveatus n. sp., Miller and Gurley, 346. 
glans Hall, Keyes, 257. 
obesus n. sp., Keyes, 257. 
proboscidialis Hall, Keyes, 257. 
verrucosus Hall, Keyes, 257. 
Actinophorus clarki, Claypole, 83. 
Actinotrypa pecularis (Rominger), Keyes, 
258. 
Adrana aldrichiana n. sp., Harris, 185. 
Aeglina (Cyclopyge), Beecher, 40. 
Agaricocrinus Troost, Keyes, 257. 
americanus (Roemer), Keyes, 257. 
pentagonus Hall, Keyes, 257. 
planoconvexus Hall, Keyes, 257. 
Agasoma 
barkerianum n. sp., Cooper, 91. 
(Trophoscyon) n. sub-gen., Cooper, 91. 
? (Trophoscyon) kernianum n. sp., Cooper, 
91. 
Agnostus 
nudus, Beecher, 40. 
rex, Beecher, 40. 
Agriochcerus Wortman, 571. 
latifrous, Wortman, 571. 
Alcyonaria, Girty, 166. 
Allorisma 
costata Meek and Worthen, Keyes, 258. 
granosum (Shumard), Keyes, 258. 
subcuneatum Meek and Hayden, Keyes, 
258. 
Alnites crassus n. sp., Lesquereux, 293. 
Alnus 
alaskana Newberry, Knowlton, 270. 
grandifolia Newberry, Knowlton, 270. 
Araastrophia? 
hemiplicata Hall sp., Winchell and 
Schuchert, 562. 
var. rotunda n. var., Winchell and 
Schuchert, 562. 
? scofieldin. sp., Winchell and Schuchert, 
562. 
Amauropsis singleyi n. sp., Harris, 185. 
Amnicola yatesiana n. sp., Cooper, 91. 
Amphoracrinus 
divergens (Hall), Keyes, 257. 
sedaliensis n. sp., Miller and Gurley, 
346. 
Amplexus 
blairi Miller, Keyes, 257. 
fragilis White and St. John, Keyes, 257. 
yandelli? Edwards and Haime, Keyes, 
257. 
Amynilyspes? sp., Scudder, 426. 
Amynodon intermedius, Osborn, 361. 
