44 
Results of Makekstoun Observations, 1845. 
TABLE IV. — Errors of the Approximate Mean Temperatures, deduced from one or two Daily 
Observations, for each Month, and the Year 1845. 
Approximate Means ( + ) greater, or 
( — ) less than true Means. 
Months 
Mean 
and 
of 24 
Max. 
17h IQm 
21b 40m 
21h 40m 
221' lOm 
22^ 10™ 
17h lOm 
211' lOm 
Year. 
Hours. 
and 
and 
and 
and 
and 
and 
and 
and 
71" 10". 
Min. 
4h lOm. 
lOh 10". 
40". 
11» lO-n. 

IQh 10-=. 
23>' 10'". 

lO"". 
J ciiiUciry 

OO'if t 


— 0^7 

— O 47 
_ 0.09 
— rt.09 
— fl.Q9 

— n.q7 
February 
OO'OO 
+ 0-65 
-0-48 
-0-45 
-0-45 
-0-05 
0-00 
-0-85 
_ O 
iviarcii 
-0-12 
-0-22 
-0-05 
+ 0-03 
+ 0-18 
-0-02 
-0-27 
A. 97 
April 
44-23 
+ 0-71 
+ 0-67 
-0-91 
-0-53 
-0-73 
-0-38 
-0-73 
-0-68 
+ 0-87 
May 
46-45 
+ 0-56 
+ 0-20 
-0-08 
0-00 
0-00 
+ 0-20 
+ 0-45 
-0-20 
-0-35 
June 
55-92 
+ 0-32 
— 0-02 
— 0-15 
+ 0-25 
— 0-47 
+ 0-03 
- 0-02 
+ 0-48 
+ 1-28 
July 
54-00 
+ 0-41 
+ 0-20 
- 0-35 
- 0-08 
-0-20 
+ 0-05 
-0-05 
-0-20 
+ M0 
August 
54-67 
+ 0-43 
+ 0-03 
-0-17 
+ 0-13 
-0-12 
+ 0-23 
+ 0-08 
+ 0-03 
+ 0-53 
September 
49-81 
+ 0-50 
-0-01 
+ 0-11 
+ 0-31 
+ 0-54 
+ 0-69 
+ 0-04 
-0-06 
-0-41 
October 
48-28 
-0-05 
-0-28 
-0-28 
-0-23 
+ 0-12 
+ 0-12 
+ 0-22 
-0-58 
-0-48 
November 
42-02 
-0-33 
-0-17 
-0-32 
-0-25 
+ 0-18 
+ 0-13 
+ 0-43 
-0-62 
-0-52 
December 
37-57 
-0-27 
-0-42 
-0-17 
-0-15 
-0-07 
+ 0-08 
+ 0-28 
-0-37 
-0-37 
Year 
44-61 
+ 0-24 
+ 0-08 
-0-28 
-0-13 
-0-10 
+ 0-10 
+ 0-08 
-0-36 
+ 0-01 
The 12 Months. 
Mean of Errors 
0-41 
0-25 
0-30 
0-24 
0-24 
0-18 
0-22 
0-44 
0-62 
Range of Errors 
1-08 
1-09 
1-02 
0-84 
1-27 
107 
1-16 
1-40 
2-25 
TABLE V. — Diurnal Ranges of Temperature, as deduced from the Hourly Observations of the 
Dry Bulb Thermometer, on each Civil Day of 1845. 
Civil 
Day. 
Jan. 
Feb. 
March. 
April. 
May. 
.June. 
July. 
Aug. 
Sept. 
Oct. 
Xov. 
Dec. 
1 
7-4 
16-7 
7-4 
22-9 
11-6 
(29-0) 
9-6 
13-9 
19-8 
10-9 
8-9 
12-6 
2 
6-3 
(26-0) 
(13-0) 
32-1 
10-6 
12-6 
12-8 
18-1 
15-4 
10-4 
(15-0) 
5-6 
3 
7-9 
11-3 
9-6 
32-0 
11-7 
16-8 
9-2 
(15-0) 
23-9 
14-4 
17-8 
7-2 
1 
9-9 
16-2 
9-7 
10-0 
(16-0) 
13-0 
16-9 
14-9 
9-3 
6-9 
20-2 
12-4 
1 ^ 
(7-0) 
9-4 
10-6 
21-3 
10-0 
16-8 
22-9 
21-8 
17-1 
(20-0) 
16-3 
6-S 
6 
190 
7-6 
13-7 
(35-0) 
8-5 
11-1 
(21-0) 
17-0 
18-8 
21-5 
25-3 
10-7 
13-5 
7 
7-4 
5-6 
6-6 
15-3 
7-0 
14-1 
13-8 
(25-0) 
7-0 
4-6 
(9-0) 
8 
12-3 
9-4 
7-9 
15-0 
11-3 
(16-0) 
15-3 
17-1 
21-6 
14-1 
11-9 
16-7 
9 
14-6 
(8-0) 
(11-0) 
20-6 
13-4 
11-1 
14-7 
4-5 
9-2 
17-3 
(16-0) 
5-4 
10 
18-2 
9-0 
13-5 
4-9 
7-7 
12-3 
15-7 
(10-0) 
7-3 
11-7 
14-5 
11-3 
11 
13-0 
3-2 
7-7 
12-3 
(25-0) 
17-5 
11-7 
71 
8-4 
14-8 
13-6 
13-0 
12 
(13-0) 
4-4 
14-7 
21-1 
13-8 
26-5 
15-5 
7-S 
21-5 
(18-0) 
14-7 
13-9 
13 
14-7 
11-3 
161 
(17-0) 
17-3 
21-7 
(23-0) 
12-2 
17-0 
18-1 
15-6 
14-2 
13-6- 
14 
6-7 
5-9 
12-4 
11-0 
24-1 
15-9 
11-8 
(25-0) 
8-7 
13-6 
(25-0) 
15 
14-4 
11-6 
14-4 
9-6 
24-2 
(22-0) 
16-9 
10-5 
25-8 
11-9 
18-5 
7-6 
16 
8-5 
(10-0) 
(18-0) 
21-9 
16-7 
11-6 
19-4 
10-6 
18-7 
8-4 
(8-0) 
10-7 
17 
8-9 
11-3 
13-7 
23-0 
120 
11-2 
IS-S 
(lS-0) 
13-3 
9-6 
8-1 
9-5 
18 
7-7 
17-7 
12-9 
11-9 
(17-0) 
14-3 
15-0 
15-3 
9-4 
12-7 
13-0 
9-9 
19 
(9-0) 
13-1 
8-2 
12-3 
5-4 
15-4 
11-7 
7-3 
15-8 
(14-0) 
4-1 
12-9 
20 
13-6 
12-5 
14-3 
(27-0) 
10-0 
19-9 
(6-0) 
4-2 
6-7 
24-1 
10-9 
7-8 
6-0 
21 
9-3 
13-8 
21-6 
30- 1 
10-5 
14-9 
12-4 
(14-0) 
11-1 
9-S 
(S-0) 
22 
7-4 
10-2 
9-3 
30-9 
8-0 
(20-0) 
4-5 
25-2 
16-6 
9-3 
11-8 
10-7 
23 
11-6 
(12-0) 
(16-0) 
27-5 
9-5 
lS-3 
6-2 
14-1 
19-9 
7-6 
(12-0) 
7-5 
24 
12-4 
15-8 
18-3 
20-6 
5-4 
11-2 
9-3 
(20-0) 
24-9 
5-6 
9-9 
16-0 
25 
17-9 
23-9 
21-8 
27-9 
(11.0) 
17-0 
17-7 
15-0 
13-9 
131 
9-8 
10-0 
26 
(10-0) 
5-9 
6-2 
16-3 
10-2 
2-8 
15-3 
14-6 
13-9 
17-0 
(14-0) 
0-6 
11-S 
27 
12-4 
9-7 
(12-0) 
11-5 
4-2 
19-5 
(20-0) 
11-3 
lS-7 
4-6 
41 
lS-5 
28 
6-5 
10-6 
8-4 
8-8 
8-0 
21-3 
26-7 
(10-0) 
4-5 
2-9 
(lS-0) 
29 
23-3 
16-9 
15-8 
9-1 
(22-0) 
23-4 
22-8 
12-9 
3-8 
10-3 
24-4 
30 
21-6 
(15-0) 
15-0 
lS-1 
13-5 
23-1 
25-7 
130 
I3S 
(17-0) 
IS-9 
31 
28-9 
21-2 
21-6 
16-7 
(19-0) 
14-8 
12-3 
