54 
Results of Makerstoun Observations, 1845. 
TABLE XXIII. — Extreme Readings of the Barometer for each Month in 1845 ; Extreme Daily 
Heights for each Month ; and Extreme Diurnal Ranges for each Month, together with the 
Ranges and Means of the Extremes. 
Month. 
Extreme Readings. 
Extreme Daily Means. 
Extreme Diurnal Ranges. 
Highest. 
Lowest. 
Range. 
Mean. 
Highest. 
Lowest. 
Range. 
Mean. 
Greatest. 
Least. 
Jan. 
d. 
u 
li. 
23 
in. 
30-052 
d. 
0*7 
h. 
18 
in. 
28-809 
in. 
in. 
zy-'±ou 
d. 
1 
in. 
30-031 
d. 
28 
in. 
28-876 
in. 
1 1 
in. 
OQ A 
d. 
25 
in. 
0-730 
d. in. 
7 10-040 
Feb. 
i 1 
22 
30-077 
^0 
17 
29-213 
12 
30-006 
22 
29-285 
n *7oi 
OQ ft/1 ^ 
24 
0-568 
0-031 
March 
o 
o 
on OA A 
9*7 
9 1 
7 
1 
qn.1 Q.^ 
0\J* LQO 
OQ.On 1 
^a'KJU 1 
1 • lo'± 
OQ ftl Q 
OQ 
zy 
U"01<5 
4 
0-057 
April 
16 
20 
30-289 
9 
4 
28-860 
1-429 
29-574 
16 
30-255 
9 
28-910 
1-345 
29-582 
14 
0-684 
0-067 
May 
{13 
19) 
20/ 
30-161 
1 
6 
29-225 
0-936 
29-693 
14 
30-123 
1 
29-257 
0-866 
29-690 
13 
0-395 
9 
0-026 
June 
i ' 
|10 
5 
22) 
2/ 
30-072 
3 
11 
28-874 
1-198 
29-473 
10 
30-047 
6 
29-038 
1-009 
29-542 
3 
0-565 
13 
0-043 
July 
10 
30-003 
1 
5 
28-727 
1-276 
29-365 
21 
29-976 
1 
29-055 
0-921 
29-515 
1 
0-706 
0-034 
Aug. 
31 
0 
30-175 
19 
20 
29-008 
1167 
29-591 
30 
30-146 
20 
29-126 
1-020 
29-636 
21 
0-397 
13 
0-030 
Sept. 
0 
13 
30-162 
18 
2 
28-781 
1-381 
29-471 
1 
30-094 
18 
28-839 
1-255 
29-466 
19 
0-721 
4 
0-032 
Oct. 
22 
9 
30-177 
8 
16 
28-946 
1-231 
29-561 
23 
30-139 
9 
29-052 
1-087 
29-595 
30 
0-489 
31 
0-067 
Nov. 
2 
13 
30-138 
19 
13 
28-239 
1-899 
29-188 
3 
30-103 
19 
28-441 
1-662 
29-272 
20 
0-658 
3 
0-077 
Dec. 
12 
11 
30-284 
19 
15 
28-282 
2-002 
29-283 
13 
30-191 
20 
28-583 
1-608 
29-387 
23 
M47 
15 
0-134 
TABLE XXIV. — Hourly Variations of the Pressure of Dry Air for each Astronomical Quarter. 
and for the Year 1845. 
Mak. 
Nov. 
Feb. 
May. 
Aug. 
Year. 
Mak. 
Nov. 
Feb. 
May. 
Aug. 
Year. 
M. T. 
Dec. 
March. 
June. 
Sept. 
M. T. 
Dec. 
JIarch. 
June. 
Sept. 1 
Jan. 
April. 
July. 
Oct. 
.Jan. 
April. 
July. 
Oct. 
h. 
in. 
in. 
in. 
in. 
in. 
li. 
in. 
in. 
in. 
in. 
in. 
12 
0019 
0-022 
0^042 
0-040 
0-028 
0 
j 0-013 
0-016 
0-009 
0-005 
0-008 
13 
-010 
-020 
•042 
-038 
•025 
I 
1 -006 
-Oil 
-008 
■003 
•005 
14 
■Ol.i 
-018 
•043 
-040 
•026 
2 
-002 
-004 
•002 
■002 
-000 
15 
•006 
•014 
-046 
•037 
-024 
3 
-006 
•000 
•003 
■002 
-000 
16 
■000 
•016 
•044 
•036 
-022 
4 
-014 
•002 
-000 
•000 
-002 
17 
-000 
•017 
-041 
-040 
-022 
5 
! -019 
•005 
-001 
■005 
■005 
18 
-003 
•017 
-031 
-043 
•021 
6 
1 -025 
•009 
-Oil 
■009 
■Oil 
19 
-012 
•018 
-028 
-039 
-022 
7 
I -025 
•014 
■016 
•020 
-016 
20 
-020 
•019 
•023 
•031 
■021 
8 
•025 
-019 
-026 
•029 
■022 
21 
•026 
•018 
-021 
•024 
•019 
9 
-022 
-021 
•032 
•035 
■026 
22 
-025 
•021 
•017 
•018 
•018 
10 
-021 
-023 
•039 
•039 
•02S 
23 
-023 
•019 
•013 
-012 
•015 
11 
' -023 
-023 
•043 
■042 
' ■o;m 
