Sessional_Paper_1886-1887 — Page 285

TABLE I.

Mean Height of the Barometer at the Observatory and at the Peak for each month in the Year 1886, and Mean Diurnal Variation at the Observatory.

282

28.131

Mean.

Month.

1 &. 2 a.

3 a.

4 a.

5 2.

6 a.

7 a.

8 a.

9 a. 10 a.

11 a. Noon.

1 p.

2 p.

3 p. 4 p.

6 р.

6 p.

7 p.

§ p.

9 p. 10 p.

11 p. Midt.

Observ.

atory.

Peak.

January,.

February,

March,

April,

May,

June,

July,

August,

-.001 .013 +.003 ..008 +.003 .008 +-.002 -.010

+.011 +.002 -.005 -011 -.011 +.012 +.002 -.005 -.011 -.009 +.008 -006 -.021 -.028 -.023 +.003 -.011 ..023 -.023-014 -.005

.000

+.016 +.036

.003

+.022 +.039

+.053 +.057 +.053 +.058

.008

+.011 +.035

+.046 +.051

+012 .029

September,.

-+-.001 -.008

October,

-.001 -.012

November,

December,

+.004 -.006

+.014 +.004

-.006

.018 .016

-.015 -.013 -.013-015 -.015 -004 .018 -.019 -.013 .015 -.017 -.011 -001 -.020 -.021 ..014 .009 ..010

.003

-.009.006 -.011 +.002

.021 +.033 +015 +.023

.004

.005 +.016 +009 +.021 +015 +.030

.040 +.044 +.043 +.044 +.030 +.030 +.025 +.029

+030 +,033

+.087 +.038

.000

.003 +.012 -.005 +.007

+.017 +034+.045 +.045 +.031 +.045 +.057 +053 +.023+.039 +.051 ++.050

+.031 +.014 +.033 +.012

+.032 +.006

+.038 +010

+.047 +.020 -.016-038 +047 +024 011 —,037 +.043 +.024 -.002 ..023 +.037 +.023 +.001 .019 .012 +.037 +.026 +.007 +.026 +.016 +.003 .013 .026 -1038 .027 +.015 +.001 .026

-.013 .036 ..038 -.030

.016 +.028 +.017 +.001 ,028 -.084

-039 .040

-.007 --.025 ..039 -.041 -.029 ..044

.012 -.033 -.040 ..044 .046 ..030

-.024 .055

-.045 054 .046 -.033

.026 -.048 ..059 -.058047 -.032

,060

..043

-,043

-.0564 -.054 -.045 -.034 -.054 -.053 .043

.039 -.041 -.029

-.032

..029 042

.041 -.031

-042 -.035

-.039 -.032

.020 -.002 -.028 -.006 ,020 —.002 018 .001

-.026 -.009

.018,002 -.015 +.003 -.021 .000 -.016 +.003 -.014 +.008

014 +.003

-.016

+.010 .016

.007 +014 +015 +.024 +.014+.022 +.004 +015 +.010 +.025 +.017 +.030 +.017 +.027 +.021 +.025 .020 +.024 +.015 +.019 .001.011 +.019

+.019 +.016| 30.040 +.017.014 30.068 +.022 +.016 29.954 +,028.016| 29.845 +.014 +,005| 29.801 +.027 +017| 29.677 +.027 +,016 | 29.670 +.027 +.019 29.642 +.022 +.015 | 29.738 +.023 +.016| 29.874 +018 +.011 | 30.026 +.019.014 | 30.086

28.245

28.255

28.192

28.111

28.093

27.989

27.986

27.956

28.039

28.152

28.270

28.290

Means,

+.005 006 014 016 011 +.001 +.016 +.032 +.042 +.044 +036 +.017-007-027 -040 -.046 -.043.032 -.019 ,000 +.018 +.022 +.021+.015 29.868

TABLE II.

Mean Temperature at the Observatory and at the Peak for each Month in the Year 1886, and Mean Diurnal Variation at the Observatory.

Mean.

Month.

1 a.

2 a.

3 a.

4 a.

5 a.

6 a. 7 2. 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.

Observ-

Peak.

atory.

January,

February,

-0.9 -1.2 -1.6 -1.9 0.8 .0.9 1.2

-

March,

0,9

L

1.3

1.3 -1.4 -1,5

L

P

April,

0.7

May,

June,

July,

—

August,

September,

October,

November,

December,

0.0

-1.9 -2.1 -2.2 -1.6 -0.6 +0.6 +1.4 +1.9 +2.3 +2.6 +2.4 +2.0 +1.3 +0.4 0.0 -0.1 -0.3 -0.6 -1.0 0,0 -0,1-0.2

1.5 -1.5 1.6 -1.1 -0.4 +0.5 +0,9 +1.5 +1.7 +1.8 +1.6 +1.4 +1.0 +0.4 +0.2 +0.2 +0.2 1.1 -0.2 +0.8 +1.2 +2.0 +2.4 +2.1 +1.9 +1.6 +0.9 −0.1 -0.5 -0.5 -0.3 -0.3 -0.4 -0.4

-1.7

1.8 1.7 -0.4 +0.8 +0.9 +1.5 +1.4 +1.5 +1.5 +1.4 +1.0 +0.5 +0.1 -0.1 -0.2 -0.2 -0.3 -0.5 -0.6

·0.9 1.0 −1.2 ∙1.2 −1.4 −1.1 -0.3 -1.4 -1.5 -1.7 -2.0 -2.1 -2.0 -1.2 -0.3 +0.7 +1.2 +1.7 +2.6 +2.7 +2.5 +2.4 +1.8 +1.1 +0.4 -0.5 0.6 -0.6 -1.2 -1.4 1,5 1,6 -1.6 -1.5 −0.7 +0.2 +0.7 +1.3 +1.4 +1.5 +2.0 +1.9 +1.8 +1.2 +0.9 +0.4 -0.3 .0.7 -0.7 -0.8 -1.3 1.4 -1.4 -1.7 — 1.7 1.8 1.0 -0.1 +0.6 +1.1 +1.6 +2.0 +2.3 +2.3 +2.1 +1.6 +1.1 +0.5 -0.2 -0.6 -0.9 -0.9 -0.2 +1.0 +1.9 +2.3 +2.3 +2.4 +2.7 +2.7 +2.4 +1.3 +0.3 -0.5 -0.8 -1.1 -1.2 -1.4

1.4 1.6 1.6 1.9 1.9 1.9 1.2 2.2 -2.4 0.7 +0.9 +2.2 +2.6 +3.4 +3.6 +3.7 +3.5 +2.7 +1.6 +0.5 -0.2 -0.6 -1.2 -1.4-1.8-2.0

2,6 2.6 -2.7 -2.7 1.8 -1.4 -1.5 -1.8-2.0 -2.1 -2.1 -1.5 -0.3 +0.4 +1.5 +1.9 +2.5 +2.7 +2.7 +2.5 +2.0 +1.2 +0.1 -0.3 -0.6 -0.8 - 1.0 1.2 1.5 -1.3 1.7 -2.1 -2.5 -2.8 -2.8 -2.7 -1.3 +0.1 +1.3 +2.4 +3.0 +3.2 +3.2 +2.9 +2.3 +1.3 +0.6 +0.3 -1.4-1.8 -2,0 -2.2 -2.5 −2.5 −2.8 -1.6 -0.1 +1.4 +2.3 +3.0 +3.5 +3.6 +3.1 +2.3 +1.3 +0.5 +0.1 −0.2 -0.3 -0.6-1.0

58.7

58.0

53.6

47.8

62.0

59.4

69.4

65,2

-0.8 0.9

75.7

69.9

-0.9 1.0

79.8

73.2

- 1.1

1.2

80.6

74.2

-1.6

81.2'

75.1

79.7

73.6

76.8

70.7

-0.1 -0.4 -0.5 -0.7 1.1

69.0

61.7

1.1

59.8

52.1

Means,

-1.2 -1.5 -1.7 -1.9 -2.0 -2.0 -1,6 −0.7 +0.3 +1:2 +1.8 +2.3 +2.5 +2.5 +2.4 +1.9 +1.1 +0.3 −0.1 -0.4 -0.5 -0.7 −0.9 −1.1

70.5

64.7

Page 285Page 286

TABLE ‘III.

Mean Humidity at the Observatory and at the Peak for each Month in the Year 1886, and Mean Diurnal Variation at the Observatory.