Tuesday August 29 - 1933 Wea. THUR. SEPT. 30, 1909 Ther. and of the same age as the drl. [illegible] Parlor Hill. The thickness here judging from the con-toured map may be thick. In other words the dis-appears to formations thicken rapidly to S. and then out to N. Arnold is disposed to place it in the [illegible] Cambrian and that it may be part of the Mil-ton drl. that thickens S to the great thickness seen W.of Coffee Hill. I am disposed to refer it to the Lower Cambrian, but until forms are found in it then in no telling who is correct. This is said, however, that the Parlor is followed by a marked erosion interval causing the Parlor to be of variable thickness in different places. Arnold postulates an island here in [illegible] time not covered by sea during Milton - Hope times and then worn away by the Highgate drl. Thus Highgate slate N. S. Highgate slate Milton drl. Island in layer up. Time Later! And as I see it, as Arnold writes, I saw it Sep 4 as I matched M. to my V Mill. C.'s locals, may be 40'-60'? thick.