670 RECORDS. 



Doctor Hovey then referred to some recent obsei-vations on 

 evidences of glaciation in a quarry at Schoharie, the surface of 

 the Hmestone showing a very smooth planing with very minute 

 scratches, though some grooves occur which are quite deep. 



Professor Stevenson pointed out that the pre-glacial form of 

 the valley was clearly about the same as at present, the action 

 ot the glacier having been entirely ineffective. On some of the 

 projecting limestone beds, the edges have been just rounded off, 

 while the face of the step has entirely escaped glaciation ; on 

 others the face also is smoothed and striated. In his view the 

 opportunities for palseontological research Avere far from being 

 exhausted in the Schoharie Valley, and he referred to the sup- 

 plies of fossils stored up in certain stone fences, and the dangers 

 to be incurred from indignant farmers. 



The Chairman related incidents connected with the arrest of 

 Mr. J. De Morgan at a visit in 1877, for breaking down stone 

 walls, and his rescue by the village tailor. 



Professor Osborn stated that the results of an excursion to the 

 Schoharie Valley in 1876, in which he participated, led to the 

 formation of the first scientific expedition of Princeton College. 



Professor D. S. Martin also gave reminiscences of an early 

 visit to this classic locality. 



The Chairman called upon the members present to present 

 notes on geological observations during the last summer. 



Professor Kemp reported on the progress of his geological 

 survey of the Adirondack region. One result was the recogni- 

 tion of a true quartzite of pre-Cambrian date, affording thus a 

 fragmental sediment. The sedimentar}' rocks in the region he 

 found to be widely charged with graphite, indicating an abundance 

 of organic life in .pre-Cambrian time. Further t}'pes of erupti\'e 

 rocks had also been identified to fill up gaps in known series. 



Professor Osborn related some results of a visit, with Dr. 

 Matthew, to the Como Bluffs Section, south of the Union Pa- 

 cific R. R., 3 hours west of Laramie ; the more certain estab- 

 lishment of its Jurassic character with a bed containing remains 

 of Dinosaurus about 40 feet below the top (a fresh water de- 

 posit), while in the marine beds beneath, Belemnites and Betan- 



