PLATE III. 
Fig. A. Undulations in layer (D 15) between lower and upper portion of the 
Great Fall, Kauya Hoora Gorge, Trenton Falls, N. Y. Undis- 
turbed horizontal layers are seen both above and beneath. Pho- 
tographed by Theodore G. White, November, 1895. 
Fig. B. Overlap structure of bedding of Trenton limestone, on east bank of 
West Canada Creek, in ‘‘ Rocky Heart,’’ Trenton Falls, N. Y. 
The lower portion in the view is covered by water. Photo- 
graphed by T. G. W., November, 1895. 
