37^ Mr Gordon on a Meteorological Journal for 1819. 
1819. 
Anderson’s Hygrometer. 
Rain. 
Evap. 
Months. 
Point of Depo- 
sition. 
Moist, in 100 
cubic in. of Air. 
Relative Humi- 
dity. 
Amount. 
Amount. 
Mean 
10 M. j 
Mean 
10 E. 
Mean 
of both. 
Mean 
10 M. 
Mean 
10 E. 
Mean 
of both. 
Mean 
10 M. 
Mean 
1 10 E. 
Mean 
of both. 
Jan. 
33.8 
32.7 
33.3 
.146 
.139 
J42 
86.4 
87.1 
86.7 
3.372 
.975 
Feb. 
31.7 
30.4 
31.1 
.136 
.130 
.133 
84.5 
84.1 
84.3 
2.191 
.750 
March 
34.3 
33.4 
33.8 
.149 
.144 
.146 
73.7 
78.7 
76.2 
.758 
1.800 
April 
36.0 
35.7 
35.9 
.156 
.155 
.156 
72.0 
81.2 
76.6 
4.175 
1.840 
May 
39.3 
40.7 
40.0 
.180 
.182 
.181 
67.6 
82.9 
75.3 
1.238 
2.650 
June 
45.8 
44.3 
45.0 
.216 
.204 
.210 
69.9 
82.6 
76.3 
2.617 
2.800 
July 
51.9 
50.2 
51.1 
.264 
.248 
.256 
74.0 
84.6 
79.3 
1.256 
2.735 
Aug. 
57.3 
55.4 
56.4 
.310 
.292 
.301 
79.8 
88.5 
84.1 
1.308 
2.366 
Sept. 
46.9 
46.6 
46.8 
.224 
.224 
.224 
75.9 
82.9 
76.4 
1.523 
1.950 
Oct. 
39.5 
38.4 
38.9 
.187, 
.180 
.183 
77.7 
80.2 
78.9 
4.015 
1.430 
Nov. 
30.9 
30.8 
30.9 
.132 
.132 
.132 
81.3 
85.5 
83.4 
1.518 
.825 
Dec. 
29.5 
28.2 
28.9 
.127 
.124 
.121 
87.2 
88.3 
87.8 
1.654 
.665 
Aver. 
39.7 
38.9 
39.3 
.186 
.179 
.182 
77.5 
83.9 
.80.7 
25.625 
20.785 
1818, 
41.1 
39.7 
40.4 
.187 
.181 
.184 
77.4 
84.4 
80.9 
27.397 
20.056 
Monthly Extremes. 
1819. 
Thermometer. 
Barometer. 
Hygrometer. 
Months, 
Highest. 
Lowest. 
Greatest range 
in 24 hours. 
Least range in 
1 24 hours. 
Highest. 
Lowest. 
Greatest range 
[ in 24 hours. 
1 Lowest range in 
1 24 hours. 
Point of 
Deposition 
Moist, in 100 
cub. in of air. 
Relative 
Humidity. 
^ Highest. 
Lowest, 
1 
Highest. 
j Lowest. 
Highest. 
Lowest. 
Jan. 
52.0 
21.0 
17.0 
4.0 
30.360 
28.690 
1.100 
.050 
44.6 
22.4 
.204 
.097 
100.0 
72.6 
Feb. 
49.5 
21.0 
16.5 
5.0 
29.900 
28.770 
.748 
.030 
42.4 
21.0 
.191 
.082 
100.0 
52.0 
March 
55.0 
26.0 
18.0 
5.0 
30.144 
28.892 
1.133 
.030 
44.6 
12.0 
.204 
.068 
98.0 
41.0 
April 
58.0 
31.0 
21.0 
5.5 
30.150 
28.935 
.453 
.005 
45.6 
22.4 
.211 
.097 
100.0 
48.0 
May 
63.0 
30.6 
25,0 
5.5 
30.060 
29.415 
.365 
.005 
53.0 
7.0 
.268 
.057 
96.0 
27.0 
June 
68.0 
41.5 
23.0 
10.0 
30.190 
29.175 
.630 
.020 
54.8 
31.4 
.284 
.132 
94.0 
42.0 
July 
74.0 
42.5 
22.5 
8.5 
30.235 
29.170 
.355 
025 
64.0 
38.4 
.381 
.167 
95.0 
54.0 
Aug. 
79.0 
47.0 
19.0 
8.0 
30.335 
28.740 
.375 
.015 
64.6 
43.0 
.386 
.194 
97.0 
53.4 
Sept. 
67.5 
38.0 
23.0 
4.5 
30.420 
29.020 
.540 
.010 
59.4 
32.4 
,328 
.137 
98.0 
52.4 
Oct. 
63.0 
26.5 
22.5 
3.0 
30.230 
29.225 
.460 
.030 
57.6 
15.4 
.309 
.076 
99.0 
47.0 
Nov. 
50.0 
20.5 
19.5 
5.5 
30.165 
28.980 
.685 
.110 
43.4 
19.0 
,197 
.087 
100.0 
51.0 
Dec. 
51.5 
9.5 
19.0 
2.0 
\ 
30.295 
28.840 
.705 
.010 
47.4 
18.6 
.225 
.086 
100.0 
62.0 
I have annexed to the above tables the results of my observa- 
tions in 1818, chiefly for the sake of some very remarkable coin- 
cidences between the two years. The most striking are the 
range of the thermometer and barometer, the absolute and rela- 
