ABSTRACTS OF PAPERS 127 



THE BURTON DICTYOSPOXGE 

 BY JOHN M. CLARKE 



(Al)stract) 



This is a hexactiiiellid, or glass sponge, from a Cliemung (Devonian) forma- 

 tion at Ripley, Chautauqua County, New York. The specimen described is of 

 great size; represents, it is believed, the apertural portion of the individual, 

 and, on the basis of other known specimens, it has been restored, the restora- 

 tion and original specimen both being in the New York State Museum. The 

 restoration gives a length of somewhat more than 10 feet. The sponge belongs 

 to the genus Ceratodictya and is probably identical with the species of the 

 Chemung formation, C. carpenteriana Hall and Clarke. The original specimen 

 was found by Mrs. H. P. Burton in her 103d year. 



RESTORATION OF THE C0H0E8 MA8T0D0X 

 BY JOHN M. CLARKE 



(Alfstract) 



The Cohoes mastodon was found in a glacial pothole in the Mohawk River 

 at Cohoes, New York, in 1865 and its skeleton is in the New York State Mu- 

 seum. A careful restoration of this has been made by the most careful and 

 exact procedures and constitutes the only known attempt to represent the 

 animal in its living state. The restoration was made by Noah T. Clarke and 

 Charles P. Heidenrich. 



PYORRHCEA TN THE COHOES MASTODON 

 BY JOHN M. CLARKE 



(Abstract) 



This skeleton has pathological dentition and erupted but one tooth on the 

 left ramus of the mandible. This tooth has an abnormal insertion and a very 

 imperfect opposition with the upper molars. As a result, the face of the animal 

 is deformed and an osseous lump developed on the proximal surface of the 

 mandible. An examination of the tooth and its socket by skillful dentists 

 seems to have demonstrated the existence of long-continued pyorrhneal condi- 

 tions, with attendant bone necrosis. 



TEMPLE HTLL 31 AS TO DON 

 BY JOHN M. CLARKE 



(Abstract) 



This skeleton was exhumed in 1921 from a truck garden near Temple Hill, 

 about four miles west of Newburgh, Orange County, New York. Except for 

 the Warren mastodon, the skeleton of which was found not far away,- the new 

 skeleton is the most complete known, the missing bones being largely a portion 

 of the ribs and the upper surface of the cranium, which was destroyed by the 



