An Abandoned Marine Sand-bar in the Cornwallis 

 Valley, Nova Scotia. — By Frederick C. Churchill, 

 Wolfville, N. S. 



(Read 12 May, 1920.) 



During the summer of 1917, while tracing out the floor 

 of an extinct lake near Coldbrook, Kings County, Nova 

 Scotia, I came across a large mound of sand with some 

 gravel, and judging from its external appearance, my first 

 impression was that I had discovered a drumlin. 



This discovery led me to abandon what I first set out 

 to do, and I immediately began to look for evidence to sup- 

 port my theory of a drumlin, but finallj'^ I felt uncertain as 

 to its origin. 



The following summer (1918), Prof. D. S. Mcintosh, 

 of Dalhousie, visited the spot with me, and we spent one day 

 looking over the ground; and he agreed with me that, owing 

 to its shape and the direction of its longer axis, it looked 

 like a drumlin; but, being cautious, he suspended judgment. 



Early in the spring of 1919, W. J. Wright, then professor 

 of geology at Acadia UniversitJ^ spent a day with me examin- 

 ing the mound and surrounding country. He said he felt 

 quite sure it was not a drumlin, stating for his reasons the 

 following facts: the absence of boulder-clay in the mound 

 itself, and that in the surrounding country the boulder-clay 

 lies below the sand and gravel. These facts were verified 

 by farmers who live near by. They say in digging wells, 

 after penetrating the sand which is usually 8 to 10 feet deep, 

 clay with loose stones is found. This I believe is the boulder- 

 clay. Mr. Wright then suggested to me that if I wished to 

 know the origin of this bank of sand I was to look for evidence 

 later than the Glacial Period. 



Proc. «c Trans. N. S. Inst. Sci., Vol. XV. Trans. 5. 



(65) 



