40 
FOURTEENTH REPORT. 
REPORT OF TOPOGRAPHIC SURVEYS IX CO-OPERATION BE- 
TWEEN THE UNITED STATES GEOLOGICAL SURVEY AND 
THE STATE OF MICHIGAN FOR THE PERIOD BE- 
GINNING JULY 1. 1910, AND ENDING 
DECEMBER 31, 1911. 
In accordance with the co-operative agreements signed June 25, 1910, 
and May 23, 1911, by George Otis Smith, Director, for the United States 
Geological Survey, and by R. C. Allen, State Geologist, June 30, 1910, 
and May 31, 1911, for the State of Michigan, the Federal Survey each 
year allotted $2,000 and the State, $2,000, for co-operative topographic 
surveys in the State of Michigan during the fiscal years July 1, 1910, to 
June 30, 1912. 
The following is a summary of the field and office work accomplished 
during the period from July 1, 1910, to December 31, 1911, under the 
general direction of R. B. Marshall. Chief Geographer, and under the 
immediate supervision of W. H. Herron, Geographer of the Central 
1 >ivision. 
FIELD WORK. 
During period from July 1, 1910, to Dec. 31, 1911. 
For pub- 
Area 
Primary 
levels. 
Traverse 
Quadrangles. 
Counties. 
lication on 
scale of. 
mapped 
sq. mi. 
Miles. 
Perm. 
Primary. 
Miles. 
B. M.’s. 
Miles. 
P. marks 
1:62,500 
1:62,500 
1:62,500 
166 
39 
17 
7 
95 
Kent and Allegan 
27 
122 
24 
66 
9 
74 
Montpelier 
Swanton 
Hillsdale 
1:62,500 
45 
170 
1:62 500 
26 
15 
3 
1:62,500 
33 
13 
5 
96 
1:62,500 
1-62,500 
13 
2 
10 
1 
19 
2 
8 
1 
8 
1 
8 
1 
8 
1 
12 
3 
8 
1 
16 
2 
Hudson 
Holland 
19 
2 
11 
4 
10 
4 
8 
1 
11 
4 
9 
2 
Jones 
9 
i 
9 
1 
5 
2 
18 
1 
Muir 
9 
2 
8 
1 
11 
1 
2 
1 
12 
1 
Vermontville . . . . 
5 
2 
8 
1 
9 
1 
Total 
336 
230 
60 
286 
35 
435 
