Month.
1 a. 2 a.
3 &.
4. a. 5 a. 6 a. 7 a. 8 a. 9 a. 10 a. 11 a. Noon. 1 p.
2 p. 3 p. 4 p. 5 p. 6 p. 7 p. 8 p. 9 p. 10 p. 11 p. Midt.
Mean.
Observ-
Peak.
atory.
January,
February,
March,
April,
May,
June,.
July,
August,
September,
October,
November, ................................................**
December,
Means,
·+++++++++
+5 +4 +3 +4 +1 +1 +2 +1 +2 +2 +2 +2 +2 +3 +3 +3 +3 +3 +3
+8 +3 +3 +4 +3
5
7
A
8
7
5
+1 +2
6
-6
4
+2 +2
6
+
+++
+2 +3 +4 +4
+5
67
+2
+4
+4 +4 +4 +5 +5
+3
+3
+3 +3
+3 +3
+3
1
111
4
4
+1 +2 +4 +4 +4 +1 +2 +2 +3. +3 +3
·0 +1 +2 +3 +3 +3
75
87
91
87
+3 +3
+4 +4
+4
81
92
5
+2
+3
+3
+3
+3 +4
83
93
-
+4
+4
+1
3
5
5
3
2
·1
+2
+2 +3 +3 +4
83
94
+7
+6 +7
+++++
++++++
+5 +
+6 +5
+2
5
6
:6
+1
-6 +5
+4 +2
L
10
-11
∙10
9
7
+3 +4
+2 +5
+4 +4
+5
82
93
+7
+6 +7 +7
67
79
+5 +
+4+2
-L
-8
8
8
3
+6 +5 +4 +4 +7 +5 +2
+3 +2
-10
9
—
10
-10
-
3
0 -1
-8 -10
-11
-12
∙10 -10
7
-4
0
+2
0 +2 +-2 +3
+5
+3
+4 +5
+3 +4 +4
72
+6
+7 +6
+7
59
+6
+7 +10 +10
55
288
84
72
67
*******ORINE
84
89
94
+5 +4 +4
+4 +4 +3 +2 -1 -3
-6
-7-7-7 -6
-5
3
0 +2 +3
+4 +4 +5 +5
75
86
TABLE IV.
Mean Tension of Aqueous Vapour at the Observatory and at the Peak for each Month in the Year 1886, and Mean Diurnal Variation at the Observatory.
Mean.
Month.
1 &
2 A.
4 a.
5 a.
7'2
8 a.
9 a.
10 a.
11 a. Noon.
1 p.
2 p.
8 p. 4 p.
5 p.
6 p.
7 p.
8 p.
9 p. 10 p.
11 p. Midt.
Observ-
atory.
Peak.
January,
February,
March,
April,
May,
June, .....
July,
Angust,
September,.
October,
November,
December,
Means,
+.014 +,006 -.002 —.006 +.004 -.003 .007 .006 ..001 -.008 .011 -.012 +.008 +.004 .002 .007 ++.002 —,006 .006 ..009
.000 -.001 .000 -.007 -.001 -.004 .004 ..009 +.004 +.003 .002 ..003 +.020 +.015 .014+.006 +.023 +.013 +.009 +.007 +.029 .018 +011 -.003 +.022 +.020 +.017 +008
+.010 +.005 +.001 −.004
-.006 -.009 :-.008 -.002 -.012 -.015 ..010 .010 .009 -.008 .006 -.005 -.017 -.016 -.016 -.011 ..004 -.002 .007 ,015 -.012 .007 ,005 .002 -.004 .002 -,001 -006 ..003 ..014 -.003 ,000 +010 +.007.009 +.001 -.004 -.008.009 +.005 +.009 +.006 .003 +.002 +.011 +.010 +.003 010 .009 ..013 -.013 -.027 -.041 -.043 .021 -.025 031 .035 -.028 -.033 -.035
.000 -.010 .011 ..016 -.011 -.018 .028 ..028 —.014” —,024
-.036
+.016 +.012
0.338
0.351
.012 .015
010 013 +.009 +010
+.016 +.017 |
317
.311
014 +.014
.498
.489
+.009 +.003
,627
.597
+.017 +.015
.733
.683
.000 +.006
.844
.770
.003 -.002
.867
.802
.004 +.003
.874.
.813
.035 .029
.687
.667
+.016 +.013
.673
.643
+.037 +.032
.426
.413
.286
.284
-.014-012 -.009 -.007 -.007 --.002 +.004 +.005 +.014 +.011 +.018 +.017 -.003 -.005 -.005 -.006 .006 +.002 +.002 +.004 +.010 +.010 -.001 +.009 .005 +.004 .006 +.007 +.007 +.001 .000 4.003 -.007 —.006 .000 +.004 .002 +.003 001.001,003 +.008 ..015 -.008 -.005 -.011 ..006 .002 .000 +.001 .010.013 +.015 +.019 -,006 .006 .001 →,002 -.005-011 .007 .004 .006 +.010 +.006 +.003 +.009 .001 +.008 +.008 +.002 .000 .007 .008 -.007 -.005 -.005-001
-.011 +.007 +.002 ..003 ..013 +.002 ..010 .001 .012 .001 +.009 +.006 ..052 -.035 -.026 .019 ..013 006.006 +.016 +.026 +.039.043 .038 .026 -.018 -.009 -.009 -.002 .000 +.007 ++,009 +.015 .015 +.018 +013 ,036 -.032 -.031 -.025 .017 .000 +.001 +.007 +.027 +.036 +.043 +.044 .037 -.036 -.023 .017 -.007 +.004 .015 +.017 +.022 +.027 +.028 +034+.039 +.038
-.007.-.010-008-010 -.011 -016-016-012 -.008-007 -.005 .000 +.001 +.004 +.009 +.014 +017 +.018 +.016 +.015
0,597
0.569
283