G3 

 Tiiaov-r sil. these Hills . 



PCame theory. Merrill's t}ieory— fold ed strata always in association- 

 with bays, hence he concludes that the glacier scoured out the 

 %^%%^/ "bays and pushed axp the hills at the sides. 

 Evidence against this theory. 



In post-glacial times, we find the most important modifications 

 upon our flora. Wearing away of east end and deposition along the 

 south shore, besides local changes which form the important relations 

 in ecological study. 



