JUNI Das, 
(A separate table of contents is provided for the article on the “The Crawfishes of the State 
of Pennsylvania” by Dr. A. E. Ortmann on p. 523.) 
Abbott, J. DeB., 419 
Academy of Natural Sciences of Philadelphia, 
347 
Aceratherium, 174 
Acichelys, 290 
Additional Remarks on Diplodocus, 72-75 
Agate Spring Stock Farm, Sioux Co., Ne- 
braska, 316 
Agriculture, Department of, Harrisburg, 348 
Agriocheerus, 205, 211 
minimus, 220 
Albion, Erie County, Pennsylvania, 361 
Alleghany County, Maryland, 344 
Allosaurus, 57. 
American Jurassic Ichthyosaurians, 325 
Amiopsis dartoni, 80 
Andrews, Dr. C. W., 225, 244, 259 
Apatosaurus, 14 
Aplodontia, 142, 143, 144, 148, 149, 151- 
153, 156-165, 178, 181-184 
rufa, 139, 142 
Archelon, 280, 284, 290 
ischyros, 280 
Astacidee, 350 
Astacine, 350 
Astacus affinis, 348, 352, 377 
bartoni, 348, 352, 377 
(cambarus) carolinus, 394 
ciliaris, 377 
fossor, 348 
limosus, 348, 352 
pusillus, 377 
Astarte packardi, 79 
Atkinson, Dr. D. A., 413, 416, 450 473, 476, 
485 
Atlantosauridse, 49 
Atlantosaurus, 14, 232 
Oo 
OL 
Atlantosaurus, beds, 63, 64, 68-70, 72, 78, 
80 
Aux Plains River, Illinois, 363 
Bad Lands, White River, Dakota, 212 
Baptanodon Beds, 70, 78, 80, 81, 336, 337 
Baptonodon, 126-128 
discus, 78-80, 82, 84, 98-106, 108, 113, 
114, 118, 121, 123, 330, 332, 335, 
336, 338, 340, 342 
marshi, 79, 103-105, 110, 113, 114, 119, 
121-123, 330, 33 
natans, 78, 79, 117-121, 327, 331 
robustus, 330-334 
Barbour, Dr. E. H., 62, 63, 185 
Bartonius, 350, 351 
Battle Creek, Michigan, 363 
Bauer, Franz, 82 
Baur, Dr. George, 44, 86, 127 
Bayet Collection, 133 
Belemnites densus, 79 
Benton Beds, 33 
Cretaceous, 336 
Beecher, Dr. C. E., 78 
Beulah Shales, 67 
Bighole River, 209, 211 
Big Horn Mountains, Wyoming, 62 
Black Tail Deer Creek, Montana, 176 
Bothriospondylus, 51, 55 
Bothrolabis, 305, 308 
tricheenus, 306 
Boulenger, Dr. G. A., 225 
Brachiosaurus, 15 
Brachylophus fasciatus, 254 
Braeburn, Pennsylvania, 380 
Brontosaurus, 14, 17, 18,523, 25, 27, 34, 39, 
46, 49, 75, 255, 263 
