WILSON ETAL.] WISCONSIN. 103 
northeast corner of the custom-house, being a copper bolt marked 
U.S.P.B.M., the elevation of which is accepted as 644.565 feet above 
mean sea level, as corrected by the latest adjustment of the Coast 
and Geodetic Survey. They are in continuation of leveling reported 
upon in the Appendix to the Nineteenth Annual Report, on pages 
258 and 259, after raising them 1.084 feet, the correction to the eleva- 
tion there given for the Dubuque bench mark (see errata in previous 
reports). 
The leveling was done under the direction of Mr. R. C.McKinney, 
topographer, by Mr. G. Stubblefield, levelman. 
All bench marks are referred to Dubuque, and are marked with 
the letters "DUBQ," in addition to the figures of elevation. They 
are stamped 1 foot low, since the above correction was applied subse- 
quent to the field work. 
Feet. 
Fairplay: T. 7 N., R. 2 W., sec. 25, northwest J of; 50 feet southeast of 
bridge; iron post, marked " 862 DUBQ " 862.956 
T. 1 N., R. 1 W., sec. 30, northeast i of; 45 rods from corner of road in- 
tersection; nail in bedplate on abutment on southwest corner of road 
bridge.- 869.28 
Benton, 22 feet north and 24 feet east of northeast corner of schoolhouse; 
iron post, marked "921 DUBQ-' -._. 922.022 
T. 2 N., R. 1 E., sec. 16, \ corner east side of; 1.5 feet north and 0.5 foot 
west of southeast corner of schoolhonse yard; iron post, marked " 973 
DUBQ" '973.966 
Belmont; about I mile west of, in T. 3 N.. R. 1 E.. sec. 15, \ corner east 
side of; 1 foot north of west fence corner formed by junction of north 
and south and east and west roads; iron post, marked " 1113 DUBQ ". 1, 114. 075 
Platteville, in foundation stone at northwest corner of city hall; bronze 
tablet, marked "992 DUBQ" 993.019 
T. 3 N., R. 2 E., sec. 15, about center of southeast } of; 14 feet east and 
15 feet south of north fence corner formed by junction of east and west 
and north and south roads; iron post, marked " 1056 DUBQ " 1, 057. 128 
T. 4 N., R. 2 E., sec. 11, about f mile west and 300 feet south of center 
of, at crossroads: 3.5 feet south and 2.7 feet east of northwest corner 
of schoolhouse yard; iron post, marked "1101 DUBQ " 1, 102. 043 
Mineral Point, about 34 feet west of water tower, 1.7 feet east and 16.6 
feet north of southwest corner of park; iron post, marked "1134 
DUBQ'' .. 1,135.150 
T. 5 N., R. 2 E., sec. 9, about £ mile west of southeast corner of; 1.4 
feet north and 7.3 feet east of south fence corner formed by junction 
of east and west with north and south roads; iron post, marked " 1128 
DUBQ' 1,129.069 
T. 6 N., R. 2 E., sec. 28, i corner east side of; about f mile east of 
Edmund; 2 feet north and 16.6 feet east of east fence corner formed 
by junction of north and south with east and west roads; iron post, 
marked "1189 DUBQ" 1,190.088 
Dodgeville, 10 feet 4 inches north and 8.7 feet east of northeast corner 
of court-house; iron post, marked "1220 DUBQ"... 1,221.107 
T. 6 N., R. 4 E., sec. 29, about | mile south of center of; 2 feet west and 
4.2 feet south of southeast fence corner formed by intersection of 
north and south with east and west roads; iron post, marked " 1199 
DUBQ" 1,200.207 
