24 THOMAS L. WATSON 



side and at the same elevation. A short distance above this the 

 loose angular material commenced to cover the surface. These 

 conditions would seem to indicate that the waters of the sea 

 had their level near this elevation, when these deposits were 

 formed in what then were the mouths of the present channel 

 ways. Such loose and angular material as may have extended 

 below that line was subjected to sea action. It was ground up 

 and distributed in the usual way over the sea bottom. It might 

 be of interest to mention that in this valley was found a series 

 of beaches, four in number, which were distinct and perfect 

 pebble beaches, deposited on a shelf rising some 50 feet above 

 the valley floor. 



For the sake of a brief comparison let us note the salient 

 features of the two zones. The first zone is characterized by a 

 seaward strip of land, some two and one-half to three miles wide, 

 reaching an elevation of some 300 feet, with deeply incised val- 

 leys (a feature common to both areas) and occupied by raised 

 beaches. This zone skirts the higher interior land area, which has 

 been termed the second zone. Furthermore, this area has its rock 

 bare and more or less polished by glacial action with but little 

 material strewn over its surface, which, for the most part, is 

 waterworn, with occasional talus slopes of angular rock. The 

 second zone, which includes all the land above 300 feet, is cov- 

 ered deeply with large angular blocks, has its bedrock exposed 

 in a few places only, and all glacial form mostly destroyed. The 

 contact between these two areas is marked in places by pebble 

 and bowlder patches along the hillsides in some of the valleys. 



PalcBontological evidence of elevation. — In one of the valleys, 

 270 feet above sea level, was found a large deposit of well-pre- 

 served shells, representing two genera living at present, Macojna 

 calcarea, Chemnitz,' and Mya tnmcata, Linn. (?). These were 

 not found in direct association with the beaches, but were only 

 a short distance from one series, and were taken from a small 

 area of black mud, not covered by vegetation. 



Dawson refers to several cases in southern and eastern Can- 



'The writer is indebted to Mr. E. M. Kindle for the identification of species. 



