70 
Results of the Makerstoun Observations, 1846. 
TABLE XLVII. — Daily and "Weekly Means of the Temperature of Evaporation, as deduced from the 
Readings of the Wet Bulb Thermometer, in 1846. 
Civil 
Day. 
Jan. 
Feb. 
March. 
April. 
May. 
J une. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
1 
33-7 
[42-2] 
[45-9] 
42-8 
48-1 
54.5 
55.0 
61-5 
48-9 
50-4 
[45-5] 
■ 
34.2 
2 
29-4 
390 
44-2 
44-7 
47-6 
59.8 
56-9 
[60-7] 
54-6 
45.8 
47-5 
20-2 
3 
37-7 
44-1 
46-4 
38-1 
[45-4] 
59-6 
58.3 
62.9 
56-6 
44-6 
49-4 
27-9 
4 
[37-0] 
36-1 
44-0 
33-6 
41-3 
60-6 
58.2 
6O.5 
59.1 
[48-8] 
49-6 
26-6 
5 
32-8 
36-9 
39-2 
[38-4] 
47-4 
59-4 
[54-4] 
60.6 
58.0 
54.1 
47.4 
36-0 
6 
43-7 
38-3 
37-2 
36-6 
46-7 
57.7 
53.3 
60.2 
[57.2] 
50.8 
47-1 
[33-41 
L J 
7 
44-8 
38-4 
37-8 
37-8 
44-2 
[58.41 
49.4 
60.6 
60.1 
46-9 
45-2 
34-0 
8 
46-3 
[35-1] 
[39-2] 
39-5 
45-8 
57.2 
50.5 
63.8 
571 
47.2 
[41.2] 
L J 
37.4 
9 
42-2 
31-7 
37-3 
37-4 
47-4 
57-7 
53.1 
[58-3] 
52.3 
51-2 
37-8 
38.3 
10 
43-4 
290 
42-2 
39-8 
[46-5] 
58.1 
54.7 
56.0 
48-4 
53.5 
33.7 
33-1 
11 
[39-6] 
36-6 
41-5 
41-6 
46-4 
54-2 
51.9 
54.8 
58.4 
[46.9] 
36.1 
26.6 
12 
35-2 
37-0 
43-9 
[43-2] 
47-9 
55.8 
[56.1] 
54.7 
57.7 
48.1 
42-3 
28-3 
13 
32-7 
37-7 
43-3 
48-7 
47-2 
58.2 
60-6 
57-5 
[55.1] 
40.0 
42.3 
[28.3] 
14 
38-0 
39-2 
42-5 
47-3 
45-8 
[57.3] 
58-1 
5M 
56.0 
41-6 
39.1 
24-2 
15 
39-3 
[39-2] 
L J 
[38-0] 
44-2 
44-9 
57.4 
58.4 
55.6 
55.6 
45.9 
[42.11 
L J 
28-2 
16 
32-1 
42-2 
39-9 
46-5 
43-5 
57.9 
57-9 
[55.6] 
54-8 
45-6 
38.2 
29.4 
17 
38-1 
39-9 
29-9 
45-9 
[46-1] 
60-2 
54-5 
57.3 
54.7 
50-6 
45-4 
25.8 
18 
[38-4] 
39-5 
28-5 
42-3 
47-2 
62.6 
51.8 
56.7 
47.6 
[47.3] 
45.5 
27.4 
19 
39-9 
39-0 
20-2 
[42-0] 
46-9 
62-1 
[54.7] 
55-4 
511 
49.8 
44-3 
41-2 
20 
42-5 
38-4 
26-9 
39-8 
48-3 
5M 
53.8 
56.0 
[50.6] 
46.8 
46-2 
[32.8] 
37.7 
21 
38-6 
46-0 
31-5 
38-0 
48-9 
[56-5] 
56-5 
57.8 
50-0 
45.4 
42.0 
22 
42-5 
[44-5] 
[31-7] 
39-5 
50-1 
58-0 
53.8 
58.0 
45.6 
45.7 
[42.9] 
32.6 
23 
39-9 
48-3 
35-7 
41-0 
50-7 
56.4 
57.3 
[54-41 
54.9 
38-8 
38.0 
32-3 
24 
38-8 
49-4 
38-8 
42-8 
[49-1] 
48-9 
52-6 
520 
54.3 
42.3 
45-3 
25.6 
25 
[42-1] 
45-7 
37-1 
44-1 
51.7 
49-6 
53-5 
50.7 
54.5 
[41.1] 
37.4 
41.9 
27-5 
26 
46-0 
45-6 
37-1 
[40.1] 
46.7 
50-5 
[57.4] 
52-1 
51.9 
42-0 
28.1 
27 
44-0 
48-1 
38-4 
36-6 
46-4 
53.8 
62.0 
52.4 
[50.9] 
37.8 
38-1 
[31-4] 
28 
41-5 
46-9 
36-7 
36-4 
45.7 
[52.8] 
62-0 
55.2 
45-4 
44.7 
30.4 
35.S 
29 
42-7 
[38-3] 
39-9 
50-8 
54.4 
57-3 
56-0 
48-9 
40.6 
[32.1] 
37.2 
30 
43-4 
37-7 
41-6 
51-9 
53.8 
60.1 
[53-5] 
50.3 
38-8 
2S.0 
34.4 
31 
48-0 
37-3 
[53-7] 
58.4 
54-0 
47-3 
39.9 
TABLE XLVIII. — Mean Temperature of Evaporation at the Observation Hours for each Month, 
for each Astronomical Quarter, and for the Year 1846. 
Makerstoun 
1 Mean Time. 
17''. 
19^. 
211'. 
231'. 
11'. 
31^. 
5^. 
7^. 
9^. 
January 
38.6 
38-7 
39-1 
41-3 
42-3 
41-4 
40-5 
39-8 
39-8 
February 
39.1 
38-5 
40-5 
42-5 
43-2 
42-6 
41-1 
40-4 
40-0 
March 
34-9 
35-7 
38-7 
40-9 
40-9 
40-4 
39.3 
371 
36-2 
April 
38-0 
40-3 
42-1 
43.2 
44-0 
44-1 
43.2 
41.3 
40.1 
May 
44-3 
46-7 
48-5 
49.7 
50-4 
50-5 
49.5 
47.9 
45.7 
June 
52-0 
55.6 
58.7 
59.4 
60-2 
59-6 
59.4 
58.2 
55.5 
July 
53.8 
55-6 
56.9 
57.9 
58-2 
58.3 
57.5 
560 
54.5 
August 
530 
55.4 
58.2 
59.4 
60-1 
60-5 
59.5 
57-4 
55.2 
September 
48.7 
51-2 
55.2 
57.2 
58-1 
57-9 
56-3 
53.9 
52. 1 
October 
43-2 
43.5 
46.7 
49.0 
49-5 
4S-9 
46.7 
45.3 
44.2 
November 
40-8 
39.9 
41.1 
43-2 
43.7 
43-1 
42-0 
41.8 
41.6 
December 
30.1 
30-4 
31.6 
33.2 
340 
33-3 
31-8 
31.2 
30-7 
Nov., Dec, Jan., 
36.50 
36-33 
37.27 
39-23 
40-00 
39-27 
38-10 
37.6O 
37-37 
Feb., Mar., Apr., 
37-33 
38.17 
40.43 
42.20 
42-70 
42 37 
41-20 
39-60 
3S-77 
May, June, July, 
50.03 
52-63 
54.70 
55-67 
56-27 
56.13 
55.47 
54.03 
51-90 
Aug., Sept., Oct., 
48-30 
50-03 
53-37 
55-20 
55-90 
55-77 
54-17 
52 20 
50-50 
The Year 
43.04 
44-29 
46-44 
48-07 
48-72 
48.38 
47.23 
45-86 
44-63 
