239 



unconformity as it does in the cases described by Logan 

 east of East river. In view of the evidence, the belief 

 held by Dawson, that the New Glasgow Conglomerate is 

 only a phase of the Millstone Grit does not seem impossible 

 and might be considered as established if the palseontolo- 

 gical evidence of the age of the beds overlying the New 

 Glasgow Conglomerate had been fully stated and had 

 then been found to bear out Dawson's contentions. But 

 in spite of the seeming absence of any angular unconformity, 

 that a disconformity does exist between the New Glasgow 

 Conglomerate and the Millstone Grit seems to have been 

 established by Logan, and, later, by Fletcher. How 

 great an interval of time is represented by this discon- 

 formity is not altogether apparent and therefore the age 

 of the New Glasgow Conglomerate can hardly be con- 

 sidered to be as yet established. 



1. Dawson, J. W. 



2. Dawson, J. W. 



3. Dawson. J. W. 



4. Dawson, J. W. 



5. Dawson, J. W. 



6. Dawson, J. W. 



7. Fletcher, Hugh 



8. Fletcher, Hugh 



9. Hartley, E. 



10. Lambe, L. M. 



11. Logan, W. E. 



BIBLIOGRAPHY. 



Proceedings Geol. Soc. Lon., Vol. 



IV, pp. 272-281, 1843-45. 



Quart. Journ Geol. Soc. Lon., Vol 



X, pp. 42-47, 1854. 



Report on the geological structure 



and mineral resources of Prince 



Edward Island, 1871. 



Quart. Journ. Geol. Soc. Lon., Vol. 



XXX, pp. 209-218, 1874. 



Acadian Geology, Fourth Edition, 



Supplement to Second Edition, p. 



35- 



Acadian Geology, Fourth Edition, 



pp. 322, et seq. 



Geol. Surv. Can., Vol. II, 1886, part 



P. 



Geol. Surv. Can., Vol. V., 1890-91, 



part P. 



Geol. Surv. Can., Report of Progress 



1866-69, P- 66. 



Proceedings and Transactions, Roy. 



Soc. Can., Vol. V, sec. 4, p. 6, 191 1. 



Geol. Surv. Can., Report of Progress 



1866-69, P- 13- 



