42 THE CANADIAN NATURALIST. [Vol. Vli. 



the sand, and varying from the size of a pea to that 

 of a hen's egg. In other parts the stratum of clay 

 can be detected only by its presence in certain shells 

 when taken from the bank. Very fossiliferous. (See 

 list of fossils below.) Varying from almost a thread to 2 



9. Eeddish sandy clay. For fossils vide infra. Average 



thickness about 2 6 



10. Red and blue clays. Tough. So interstratified as to 



present a beautiful banded appearance. An occa- 

 sional Mya or Natica occurs, but so much decomposed 

 as not to stand removal. This bed extends down- 

 ward to the level of the road, say 5 or 6 feet, but how 

 far below there is no means of determining 6 



Although fossils are found sparsely in the lower part of No. 7 

 ■and in the upper part of No. 10, the fossiliferous layer may he 

 said to consist of Nos. 8 and 9. 



In No. 8 I have found the following as determined hy Dr. 

 Dawson, viz. : 



Saxicava rugosa. Macoma calcarea. 



Mya arenaria. Groenlandica. 



Also young shells of the same Cryptodon Gouldii (?). 



.{lioi very numerous). Natica clausa (affinis). 



M. truncata. Buccinum undatum. 



Ledapernula. Balanus crenatus. 



glacialis. Ilameri. 



Nucula tenuis (expansa) (scarce). 3Iytilus edulis. 

 Aphrodite Groenlandica. 



In No. 9 I have found : 



Mya arenaria. Yexy abundant. Balanus crenatus. 



truncata. Rare, Ilameri. 



Nucula tenuis. Abundant. Young Mya in great abundance. 



As it is almost impossible to tell in which stratum of the fos- 

 siliferous bed (i. e. whether in the sand or clay) the fossils 

 occur), I will give the material with which they were filled when 

 removed from position : 



Saxicava J Leda glacialis, L. j:)ern?i?«, Buccinum, Natica, 

 Aphrodite Groenlandica, Balanus almost invariably with sand, 

 Macoma calcarea and M. Ch'oenlandica sometimes with sand and 

 sometimes in clay, but more frequently with the former, Mya 

 arenaria, M. truncata, young Mya, Nucula tenuis, 3Iytilus 

 edulis almost invariably with clay. 



I have examined a number of the clay concretions mentioned 

 above, but have not been able to find in them any fossil remains. 



