ABSTRACTS AND DISCUSSIONS OF PAPERS 149 



from the records of bore-holes, the formation evidently grades upward into the 

 overlying Salina formation. Conformably beneath the Guelph are 30 feet or 

 more of thin-bedded dolomites, recently called by the writer the "Eramosu 

 beds." These are generally argillaceous and commonly bituminous and have 

 been defined as the top of the Lockport formation. These beds are persistent 

 almost throughout the Guelph area of Ontario, and indicate by their lithological 

 characters, as well as by the meager fauna contained, transitional conditions 

 between Lockport and Guelph sedimentation. 



Eastward, toward the Niagara River, the Guelph formation is greatly reduced 

 in thickness and the underlying thin beds are illy defined. Northward, on the 

 Bruce Peninsula, the lower Guelph beds contain a cephalopod-lamellibranch 

 fauna, closely related to the fauna of the Racine beds of Wisconsin. The 

 typical Guelph occurs along the west shore of the Bruce Peninsula and on the 

 islands to the north as far as the extreme western end of Fitzwilliam Island. 

 Beds belonging either to the Upper Lockport or Lower Guelph also occur on 

 the south shore of the western end of Manitoulin Island. 



The meeting then adjourned for luncheon. 



PRESIDENTIAL ADDRESS 



At 2 p. m. the Society met in conjunction with the Geological Society 

 of America to hear the address of E. 0. TTlrich, the retiring President of 

 the Paleontological Society, entitled 



THE USE OF FOSSILS IN CORRELATION 



Following this address the Society met in two sections, the Vertebrate 

 Section in the library of the Medical School and a Section of Invertebrate 

 and General Paleontology continuing in the general-session room. 



The minutes of the Section of Vertebrate Paleontology follow: 



SECTION OF VERTEBRATE PALEONTOLOGY 



The Section of Vertebrate Paleontology, with Prof. F. B. Loomis in the 

 chair, held separate sessions for the presentation of special papers, com- 

 mencing Wednesday afternoon, December 29, at 3.30 o'clock, after the 

 presidential address and the completion of the general papers in the So- 

 ciety. Dr. W. J. Sinclair was requested to act as secretary. The follow- 

 ing papers were presented : 



PHYLOGENETIC REVIEW OF EXTINCT AND RECENT ANTHROPOIDS, WITH 

 SPECIAL REFERENCE TO THE EVOLUTION OF THE HUMAN DENTITION 



BY W. K. GREGORY 



(Abstract) 



Of the anthropoids from the Lower Oligocene of Egypt Parapithecus 

 Schlosser is known from a very small lower jaw and complete dentition. In 



