542 
Royal  Society. 
Table  (continued). 
1871. 
Mason's 
Hygrometer. 
Mr.  White- 
house's. 
Deductions  from 
Wet-bulb 
Hygrometer. 
Remarks. 
>  4 
a 
Day. 
Hour. 
Dry 
Bulb. 
Wet 
Bulb. 
«? 
M  l 
ft 
Acid 
Bulb. 
O 
§ft 
O   U 
:ll 
111 
££g 
h    m 
in. 
grs. 
2*1 
f  Vapour    much    de- 
Nov.  9  . 
9      O  A.M. 
0 
37-0 
0 
35'° 
0 
2*0 
0 
58'5 
0 
21-5 
•182 
83 
J      creased ;    yet  hu- 
midity has   risen, 
[_     Note  acid-bulb. 
» 
9  IO    » 
37'° 
35'° 
2'0 
58-0 
21'0 
•182 
2*1 
83 
T  Fine    day ;     rather 
\      cloudy  p.m. 
f  Vapour  slightly  in- 
O    20  P.M. 
2  O     „ 
3  o    „ 
45-0 
45-0 
45*o 
40-0 
39'2 
39'° 
5'° 
5'8 
6-o 
68-o 
66-o 
667 
23-0 
21'0 
217 
•197 
•184 
•181 
2-3 
2*1 
2*1 
66 
61 
60 
J       creased,    but    hu- 
midity decreased. 
[_     Note  acid-bulb. 
3  3o    „ 
45*° 
39*2 
5'8 
66-o 
21*0 
•184 
2'I 
61 
3  45    ii 
44*5 
39'° 
5'5 
657 
21*2 
•185 
2*1 
63 
6    0    „ 
42*0 
38'5 
3'5 
63'5 
21-5 
•198 
2'3 
76 
Slight  shower  at  4.10 
6  30    „ 
42*0 
38'5 
3'5 
62*5 
20'5 
•198 
2'3 
76 
P.M. 
70,, 
41*0 
38-0 
3'° 
62-0 
21*0 
•197 
2'3 
77 
8     0    „ 
39*5 
37'° 
2'5 
63-0 
23'5 
•194 
2'3 
80 
9     °    „ 
39*5 
36'5 
3'° 
6i*o 
21-5 
•185 
2'I 
77 
Nov.  10 ! 
H30  A.M. 
43-0 
39'° 
4-0 
67'o 
24-0 
•181 
2*1 
65 
1    T        1         , 
II    40     „ 
42*5 
39'° 
3*5 
67*2 
247 
•202 
2'3 
75 
\  Note  these  changes. 
3    IOP.M. 
45-0 
39'° 
6-o 
68-o 
23-0 
•181 
2"I 
60 
J 
» 
6     0    „ 
42*5 
37'° 
5'5 
62*0 
19-5 
•170 
i'9 
63 
6  30    » 
4i*5 
37'° 
4'5 
61  -o 
i9'5 
•177 
2*0 
67 
» 
7   30    M 
40*0 
36'5 
3'5 
6o-o 
20*0 
•180 
2-I 
73 
>»           . 
8     0    „ 
39*5 
36*0 
3'5 
6i*o 
21-5 
•176 
2'I 
74 
JJ 
8  30    „ 
38-5 
35'5 
3'° 
6o*o 
21-5 
•177 
21 
76 
„ 
9     0    „ 
38-5 
35'° 
3'5 
59'5 
21-0 
'169 
2'0 
80 
Nov.  11 . 
8    50  A.M. 
33"° 
32'° 
J'O 
52'5 
I9-5 
•167 
2'0 
89 
Foggy  and  cold. 
9  5o    « 
35'° 
33'° 
2'0 
55'° 
20'0 
•164 
i'9 
80 
1  Vapour    increased 
J       humidity  steady. 
11  20    „ 
39'° 
36'5 
2'5 
62*0 
23*0 
•190 
22 
80 
Acid  flow 
ing 
abou 
t    1 
drop 
in  77 
seco 
nds. 
Nov.  4  . 
2   50  P.M. 
48-0 
44' 5 
3'5 
?7i'5 
?23"5 
•253 
2*9 
76 
Acid-reading     doubt 
>) 
3  i°    » 
47*3 
44'° 
3*3 
74"  3 
27-0 
•258 
2-9 
77 
ful ;  taken  too  soor 
»       • 
3  3o    „ 
47*5 
44' 3 
3'2 
75-0 
27'5 
•255 
2-85 
78 
after  starting. 
>> 
3  5°    » 
47-2 
44'° 
3-2 
74'° 
26-8 
•251 
2'9 
78 
\  Humidity  unaltered 
J      vapour  decreased 
Nov.  24. 
1 1    24  A.M. 
44'° 
41*2 
2-8 
66-5 
22'5 
•228 
2-6 
78 
>? 
5    30  P.M. 
42*0 
38'5 
3'5 
63'3 
21*3 
•199 
2-3 
75 
» 
6       O     „ 
4i'5 
38*0 
3'5 
63*0 
2i'5 
•193 
2*3 
75 
>>      • 
•    6  30   „ 
4i'5 
37'5 
4-0 
63-0 
2i'5 
•185 
2"2 
71 
Nov.  25 . 
II    30  A.M. 
32'5 
36-8 
17 
6ro 
22*5 
•200 
2-3 
86 
Vapour  hardly  changed 
Nov.  29. 
II    15     „ 
39'° 
37'° 
2'0 
6i'5 
22*5 
•199 
2'3 
84 
humidity  very  largel 
>> 
II    25     „ 
39'° 
37'° 
2"0 
6i*o 
22*0 
increased.  Noteacic 
j> 
3  45™. 
40*0 
37'3 
27 
62-5 
22"5 
v> 
5     0    » 
39'° 
37'5 
i'5 
6i-o 
22'0 
,, 
6     0    „ 
38-0 
36-0 
2*0 
59'° 
21'0 
»> 
6  30    „ 
38-0 
35'5 
2'5 
58-5 
20*0 
Nov  30. 
20,, 
39'° 
37'° 
2'0 
62*0 
23-0 
>» 
40,, 
39*5 
37-0 
2-5 
6r5 
22'0 
>>       • 
.    4  3°   » 
39'° 
37-0 
2'0 
61-5 
22*5 
5     °   » 
38-5 
37'° 
i*5 
6ro 
22*5 
.... 
Earning. 
»>       • 
5  30   » 
38-5 
367 
1-8 
6i*o 
22*5 
