12 NEW YORK STATE MUSEUM 



satisfy one that it marked a shore line; much less that it was of 

 marine origin. The ascent was continued at the Kingsmere post- 

 office up to 965 feet to the northward, but no definite shore lines 

 were seen. 



Professor Woodworth is indebted to the Geological Survey of 

 Canada for advice and literature concerning the study of shore 

 lines about Ottawa, and particularly to Dr R. W. Ells for person- 

 ally conducting him to the Pleistocene phenomena of the Hull 

 district. He also wishes to express his obligation to Joseph 

 Hobson, chief engineer of the Grand Trunk Railway, at Montreal, 

 for information concerning the altitudes of stations on that road. 



During the latter part of the season, Mr P. T. Coolidge, of 

 Watertown Mass., accompanied Professor Woodworth as a volun- 

 tary assistant in the search for shore lines and marine shells. 

 Mr Coolidge reports the finding of Mytilus edulis in the delta 

 deposits at Port Kent south of the railroad station. 



Incidentally, Professor Woodworth reports, as having fallen 

 under his notice in the course of the above journeys, the occur- 

 rence of trails of Protichnites on a ripple-marked sandstone layer 

 of the Potsdam at high-water mark under the bank of Lake Cham- 

 plain at Port Kent near Trembleau Hall. 



• Professor Woodworth has also prepared a report of progress 

 on the Champlain district, being essentially an account of the 

 general surface geology of the Mooers quadrangle, comprising 

 portions of the towns of Mooers, Altona, Chazy, Beekmantown 

 and Dannemora. A detailed statement of the results of the study 

 of water levels on this area is to be embodied in a report on the 

 marine submergence following the glacial period. 



This report forms a Museum bulletin. 



Owing to the absence of Prof. H. L. Fairchild in Europe, no 

 i/ivestigations were conducted in the work under his charge. 



Economic geology 

 In economic geology, papers on peat and gypsum were com- 

 pleted by Mr A. L. Parsons and an article on abrasives in New 

 York was prepared by Mr H. C. Magnus. 



