GoLpTHWaIT. — Sand Plains. 
PLATE 1. 
A. Lobate front of the big Saxonville delta, at its southwestern side. The three 
high lobes are about 170 feetin altitude, and probably belong to the Morse- 
ville water-plane. Just to the right of the house, and below it, is a lower 
lobe which belongs to one of the lower water-planes. 
B. Water-worn surface of a ledge near Hobbs’ Brook reservoir, mentioned on page 
294. This may possibly record the work of a torrential outlet of Lake 
Sudbury. 
