132 
May. 
In 
Vacuo. 
In 
Carbonic 
Acid 
Gas. 
In 
Hydrogen 
Gas. 
Con- 
densed 
Air. 
Black 
Bulb 
Freely 
Exposed. 
Maxi 
mum 
in 
Shade. 
o 
o 
o 
o 
o 
o 
1862 
95-7 
89-1 
86-9 
86-3 
81-2 
64-4 
1863 
88-4 
87-1 
86-1 
86-6 
74-8 
61-2 
1864 
97-5 
96-4 
95-0 
95-8 
81-4 
66-5 
1865 
93-7 
88-2 
87-1 
87-9 
79-3 
65-0 
Means 
93-8 
90-2 
88-8 
89-1 
79-2 
64-3 
June. 
In 
Vacuo. 
In 
Carbonic 
Acid 
Gas. 
III 
Hydrogen 
Gas. 
Con- 
densed 
Air. 
Black 
Bulb 
Freely 
Exposed. 
Maxi- 
mum 
in 
Shade. 
o 
o 
o 
o 
o 
o 
1862 
88-9 
86-3 
84-2 
84-8 
69-6 
58-8 
1863 
97-2 
96-6 
93-0 
94-1 
81-4 
66-8 
1864 
98-9 
97-5 
94-9 
95-5 
81-2 
66-2 
1865 
101-8 
104-6 
99-0 
101-0 
930 
72-8 
Means 
96-7 
96-2 
92-8 
93-8 
81-3 
66-1 
July. 
In 
Vacuo. 
In 
Carbonic 
Acid 
Gas. 
In 
Hydrogen 
Gas. 
Con- 
densed 
Aii\ 
Black 
Bulb 
Freely 
Exposed. 
Maxi- 
mum 
in 
Shade. 
o 
o 
o 
o 
o 
o 
1862 
97-8 
94-0 
91-9 
91-8 
80-3 
66-7 
1863 
101-1 
100 7 
98-1 
98-7 
87-3 
70-8 
1864 
100-8 
108-6 
98-8 
98-8 
86-0 
70-9 
1865 
110-6 
107-2 
103-4 
103-8 
94-4 
76-6 
Means 
102-6 
102-6 
98-1 
98-3 
87-0 
71-2 
August. 
In 
Vacuo. 
In 
Carbonic 
Acid 
Gas. 
In 
Hydrogen 
Gas. 
Con- 
densed 
Air. 
Black 
Bulb 
Freely 
Exposed. 
Maxi- 
mum 
in 
Shade. 
D 
o 
o 
0 
o 
o 
1862 
1863 
93-9 
93-5 
91-8 
92-7 
83-4 
68-7 
1864 
96-3 
94-5 
910 
92-1 
80-9 
68-0 
1865 
102-6 
97-0 
94-8 
97-0 
81-7 
68-7 
Means 
97-6 
95 0 
92-5 
93-9 
82-0 
68-1 
