W. E. Logan on the Rocks of the Quebec Group. 367 
3 * 
PIL. hy * ee ee te £ Ti: 1, t Lévis 
a — 3 
miles, on which all the exposures are laid down by admeasure- 
ments, comprising the work of one member of the Survey for 
and of another for one season. The measurements 
at Point Lévis I have recently re-protracted on the same scale, 
