MOKELUMNE RIVER, CALIFORNIA. 
Daily gage height of Mokelumne River at Lodi, Calif ornia, for 1894. 
87 
Day. 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
2", 
26 
27 
28 
29 
30 
31 
Jan. 
5.50 
5.50 
6.50 
7.00 
7.00 
7.00 
6.00 
6.50 
7.00 
12.00 
11.00 
8.00 
7.50 
7.00 
12.00 
9.00 
7.50 
7.00 
8.00 
7.00 
6.33 
6.00 
6.00 
6.00 
6.00 
Feb. 
6.17 
6.33 
6.33 
6.17 
6.17 
6.33 
6.33 
6.25 
6.25 
9.50 
7.17 
7.00 
7.00 
6.67 
6.50 
6.50 
7.00 
9.00 
15.00 
16.00 
11.00 
9.50 
9.00 
8.00 
7.67 
8.00 
8.17 
8.17 
Mar. 
8.17 
8.17 
8.17 
8.92 
8.25 
8.25 
8.25 
8.25 
8.25 
8.33 
7.92 
7.67 
7.50 
8.00 
9.33 
9.33 
10.00 
11.00 
10.00 
9.00 
9.00 
8.50 
8.33 
8.00 
8.33 
9.00 
9.50 
10. 00 
10.50 
10. 83 
11.00 
Apr. 
10.33 
11.50 
11.00 
11.50 
12.50 
12.75 
12. 83 
13.00 
14.00 
14.08 
14.83 
15.50 
14.50 
13.75 
14.25 
14.00 
13.50 
12. 50 
12.75 
13.25 
13.83 
14.50 
15. 00 
14.92 
13.92 
14. 00 
13.92 
13. 82 
12. 00 
11.83 
May. 
13.25 
13.00 
13.25 
13.17 
13. 25 
14.08 
15.08 
15.00 
16.08 
16.00 
16.08 
16.00 
16.17 
16.50 
15. 83 
14.50 
13. 33 
14.17 
13. 33 
13.50 
13.25 
12.67 
13. 50 
14.00 
15.83 
15. 67 
16.00 
15.50 
14.83 
14.50 
15.50 
June. 
15.83 
15. 00 
14.50 
14.33 
13.33 
13. 00 
12.33 
12.25 
13. 00 
12.50 
12.00 
11.00 
12.50 
12. 33 
13.42 
13.83 
14.33 
14.50 
I 13.83 
I 13.33 
13.17 
I 12.83 
13.25 
13.00 
12.50 
12.42 
12.17 
12. 00 
11.50 
11.33 
July. 
11.50 
11.42 
11.33 
11.33 
11.42 
11.50 
11.50 
11.33 
11.33 
11.42 
11.33 
10.92 
10.67 
10.50 
7.33 
9.67 
10.50 
10.50 
10.50 
10.50 
10.50 
10. 50 
10.50 
10.42 
10.50 
10.50 
10.17 
10 50 
10.25 
10.33 
10.50 
Aug. 
10.17 
10.33 
10.33 
10.42 
10.42 
10.42 
10.33 
10.25 
10.17 
10.17 
9.83 
9.75 
9.75 
9.50 
9.33 
9.25 
9.25 
9.00 
9.25 
9.17 
9.00 
8.83 
9.00 
9.25 
9.50 
9.67 
9.58 
9.50 
9.33 
9.67 
9.83 
Sept. 
Oct. 
10.00 
9.83 
9.83 
9.92 
10.00 
10. 17 
10. 00 
9.67 I 
10.00 ! 
9.50 
9.50 I 
9.00 I 
8.83 
8.67 
8.50 I 
8.50 I 
8.33 
8.33 
8.25 
8.17 
8.00 
7.83 
7.83 
8.25 
8.50 
9.00 
9.33 
8.50 
6.83 
6.75 
6.50 
6.50 
6.50 
6.67 
6.58 
6.50 
6.50 
6.67 
7.00 
7.33 
8.00 
8.00 
8.00 
8.00 
5.00 
6.00 
6.17 
6.33 
6.50 
6.33 
6.50 
6.50 
5.83 
6.50 
5.33 
Nov. 
Dec. 
5.33 
5.25 
5.25 
5.42 I 
5.33 
5.17 
5.00 
5.17 
5.25 
5.25 
5.25 
5.25 
5.25 
5.25 
5.17 
5.17 
5.08 
17 
17 
25 
17 
17 
2.". 
25 
17 
17 
17 
5.42 
5.50 
5.42 
5.42 
5.25 
5.25 
5.17 
5.33 
6.50 
7.00 
7.17 
6.50 
6.33 
6.00 
6.00 
5.83 
5.50 
5.33 
5.33 
9.00 
9.00 
12.50 
9.00 
10. 00 
11.00 
8.50 
8.33 
7.50 
7.17 
6.50 
6.33 
7.25 
7.50 
SOUTHERN CALIFORNIA STREAMS. 
The sources of the water supply of southern California are so widely 
scattered, and the streams themselves are often so small and difficult 
of access at points where measurements can be made, that, owing to 
expense, no systematic work has been done. The State engineer of 
California made a number of measurements at intervals, but, so far as 
can be ascertained, the results, though mentioned in reports, have not 
been prepared for publication. A preliminary reconnaissance was 
made in the fall of 1894 by this Survey, and a number of points were 
selected where measurements might be carried on, but the work has 
not advanced to a stage permitting of the publication of data, and 
these will be deferred until the next report. 
POTOMAC BASIN, IN MARYLAND, VIRGINIA, AND WEST VIRGINIA. 
A study of the Potomac River was begun in 1891, the field work 
being carried on by Mr. Cyrus C. Babb. Observations of river height 
were first made at Chain Bridge, about 3 miles above the city of Wash- 
ington, and at later times reconnaissance and discharge measurements 
were made on some of the higher branches in order to obtain data of 
run-off from the catchment areas of different character under similar 
climatic conditions. In the fall of 1891 the matter was given more 
careful attention, and preparations were made for a thorough series of 
measurements during the succeeding year. 
