A, 
B.— Bakersfield. 
Ba.— Barre. 
Br.— Bristol. 
Bu.— Burlington. 
E. ¿Essex Junction. 
E. F.— Enosburg Falls. 
E. G.— East Georgia. 
F.— Ferrisburg. 
G. C.— Greens Corners. 
H.— Highgate Centre. 
Ha.— Hardwick. 
H. Bk.— Hollow Brook. 
J.— Jeffersonville. 
Jo.— Johnson: 
Lan. R.— Lamoille River. 
L. Mem.— Lake Memphremagog. 
L. Ot. Cr.— Little Otter Creek. 
M.— Milton. 
Sketch map of northwestern Vermont. 
PLATE 2, 
Key to abbreviations. 
Mis. R.— Missisquoi River. 
Mo.— Morrisville. 
Mp.— Montpelier. 
Mt. M.— Mt. Mansfield. 
N.— Northfield. 
P.— Plainfield. 
R.— Roxbury. 
Ri.— Richmond. 
S.— Stowe. 
S. F.— Shelburne Falls. 
St. A.— St. Albans. 
V.— Vergennes. 
N.— Williamstown. 
Wa.— Waterbury. 
W. Bk.— Wild Brook. 
W. E.— West Enosburg. 
Win. R.— Winooski River. 
Wo.— Wolcott. 
B-F.— Diagrammatic maps of certain lake stages in northwestern Vermont. 
B, a. — A marginal lake south of Northfield (945 ft.). 
b. — Lake Williamstown (890 ft.), discharging into the Connecticut River. 
c. a. — Second Lake Lamoille just after falling below the level of the divide 
at Eligo Pond (900 ft.) 
b. — First Lake Winooski at a stage represented by an altitude of about 
745 feet at Plainfield. 
D. 1. — Lake Mansfield. 
The terraces and beaches in the vicinity of Mont- 
pelier at 650 to 675 feet in altitude and those near Morrisville at 
760 to 790 correspond to the level of this lake. 
Ice in the vicinity 
of Richmond held the water of Lake Mansfield somewhat higher 
than the level of Lake Vermont or the last stage of Lake Albany 
(b.) 
Lake Vermont (b). 
Fr, — Wood Creek stage of Lake Vermont. 
marks in the last three diagrams represent hypothetical ice borders. 
a. — Third Lake Lamoille (650 ft.) during a part of the Coveville stage of 
The lines between the question 
