140 PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



Page 



Additional characters of Tyrannosaurus and Ornithomiinus [ab- 

 stract] ; by Henry Fairfield Osborn 150 



Criteria for the determination of species in the Sauropods, with 

 description of a new species of Apatosaurus [abstract] ; by 

 diaries 0. Mook 151 



Pelvis and sacrum of Camarasaurus [abstract] ; by Henry Fair- 

 field Osborn 151 



An early Pliocene Monodactylous horse [abstract] ; by Edward L. 



Troxell 151 



Session of Thursday, December 30 152 



Preliminary report of the committee on the nomenclature of the 

 skull elements in the Tetrapoda [abstract] ; by W. K. Gregory- 152 



Origin of the sternum in the reptiles and mammals [abstract] ; by 

 S. W. Williston 152 



Mounted skeleton of Ganis dims, with remarks on the methods of 

 reconstruction of extinct animals [title] ; by W. D. Matthew.. 153 



Mounted skeleton of Blastocerus pampwus — a fossil deer from 

 Argentina [title] ; by W. D. Matthew 15.'! 



Skeletons of Biplodocus and Apdtasanrus in the Carnegie Museum 



[abstract] ; by W, J. Holland 153 



Section of Invertebrate and General Paleontology 153 



Summary of the results of investigations of the Floridian and 

 Bahainan shoal-water corals [abstract] ; by T. Wayland 

 Vaughan 154 



Correlation of the Upper Cretaceous deposits of the Atlantic and 



Gulf Coastal Plain [abstract] ; by L. W. Stephenson 154 



Session of Thursday, December 30 155 



Report of the Auditing Committee 155 



Mississippian section in west-central Kentucky [abstract] ; by 

 Charles Butts 155 



Stratigraphic and faunal succession of the Chester group in Illi- 

 nois and Kentucky [abstract] ; by Stuart Weller. 156 



Comparison of the Yellowstone Park algse with Algonkian forms 

 [abstract] ; by Charles D. Walcott 156 



The Chester controversy [abstract] ; by E. O. Ulrich 157 



Stratigraphy of the Canadian Cordillera [abstract] ; by Lancaster 

 D. Burling 158 



New species of the Mesonacidae, with twenty-nine rudimentary 

 segments posterior to the fifteenth [abstract] ; by Lancaster D. 



Burling 158 



Comparison of European and American early Paleozoic formations 



[abstract] ; by Ainadeus W. Grabau 159 



Subdivisions of the Traverse group of Michigan and its relation to 

 other mid-Devonic formations [abstract] ; by Amadeus W. 



Grabau 159 



Some fossil algae from the oil-yielding shales of the Green River 

 formation of Colorado and Utah [abstract] ; by Charles A. 

 Davis. . .' 159 



