498 RECORDS 



Theodore G. White, The Glens Falls, N. Y. Section of 

 THE Lower Ordovician. 



Henry S. Washington, The Rocks of Lake Winnepesaukee, 

 N. H. 



Daniel S. Martin, Minerals Found at Haddam, Maine. 



Alexis A. Julien, The Geology of Central Cape Cod. 



Richard E. Dodge, Physiography of the Region of the 

 Colorado Canon. 



Also notes by J. J. Stevenson and E. 0. Hovey. 



Summary of Papers. 



Mr. van Ingen described the work of the party belonging to 

 the Geological Survey of New Jersey, which, during the past 

 two summers has been engaged in tracing the outcrops of the 

 Paleozoic formations, and collecting fossils. Of this party, Mr. 

 Kiimmel, the assistant State geologist, traces the boundaries and 

 works out the tectonics, while Dr. Weller, of the University of 

 Chicago, collects fossils at localities indicated by Mr. Kiimmel. 

 During July, Mr. van Ingen spent a week with this party in the 

 field at Newton. Newton is situated on the shales of the Trenton 

 Group, there extensively quarried for slates. To the east is a 

 low ridge of limestDne which presents the same appearance as 

 the Barnegat hmestone along the Hudson river. 



The upper part of this limestone has yielded trilobites, probably 

 DikellocepJiahis, indicating that this portion is of upper Cambrian 

 age. At other localities a trilobite described by Weller as Lios- 

 traais Jerseyaisis, shows that the rock there is also Cambrian, 

 probably of the middle or upper division. In the vicinity of 

 Franklin Furnace good specimens of Olcncllus cf. thompsoni 

 were found at localities described by Foerste. Further to the 

 east of Newton, on the other side of the Cambrian .ridge, is a 

 wide belt of Ordovician rocks, Trenton limestone overlaid by a 

 thick series of shales. The limestone contains the typical Trenton 

 fauna, Rafinesquina, Plectambonites, Pterygometopus, etc., and is 

 very like that found at Rosetown, Ulster county, and at Rochdale, 

 Dutchess county, N. Y. The shale has few fossiliferous beds, 

 but occasionally one of the more sandy layers contains Dal- 



