REGISTRATION OF THE CHEMICAL ACTION OF TOTAL DAYLIGHT. 
629 
Daily Chemical Intensity, Manchester, 1864 (continued). 
June 30th, 1864. Mean Temp. Dry bulb 12°-6. 
Barom.=758 millims. „ Wet bulb 12°T. 
July 4th, 1864 (continued). 
Barom. =759-5 millims. 
Mean Temp. Dry bulb 20° -3. 
„ Wet bulb 11 °-8. 
Solar time. 
Chemical 
intensity 
of light. 
Amount 
of cloud. 
Sun’s disk. 
h m 
12 0 
0-065 
9 
Rain. 
12 30 p . m . 
0-070 
9 
„ 
1 0 
0-097 
8 
„ 
1 30 
0-090 
8 
„ 
2 0 
0-14 
8 
„ 
2 30 
0-14 
Clouds. 
3 0 
0-34 
Unclouded. 
3 30 
0-25 
5 
„ 
4 0 
0*11 
7 
Clouded. 
4 30 
0-095 
7 
„ 
5 0 
0-074 
6 
„ 
5 30 
0-072 
6 
6 0 
0-056 
6 
„ 
6 30 
0-067 
2 
Sunshine. 
7 0 
0-043 
0 
Unclouded. 
7 30 
0-023 
0 
” 
July 5th, 1864. 
Mean Temp. Dry bulb 14° -0. 
Barom. =761-6 millims. „ 
Wet bulb 10° -7. 
8 10 A.M. 
0-12 
10 
Clouds. 
8 30 
0-10 
10 
„ 
9 0 
0-033 
10 
„ 
9 30 
0-14 
10 
„ 
10 0 
0-11 
10 
„ 
10 30 
0-077 
10 
„ 
11 0 
0-14 
10 
„ 
11 30 
0-15 
10 
„ 
12 0 
0-18 
10 
„ 
12 30 p . m . 
0-12 
10 
„ 
1 0 
0-10 
10 
» 
1 45 
0-32 
7 
Light clouds. 
2 15 
0-13 
10 
Clouded over. 
2 45 
0-28 
6 
Unclouded. 
3 30 
0-25 
6 
Clouds. 
4 0 
0-18 
6 
Light cloud 
4 30 
0-26 
6 
„ 
5 0 
0-072 
7 
„ 
5 30 
0-093 
6 
6 0 
0-067 
4 
Clouds. 
7 30 
0-035 
4 
Unclouded. 
July 6th, 1864. 
Mean Temp. Dry bulb 17° - 6. 
Barom. =765’3 millims. „ 
Wet bulb 13 -4. 
7 30 A.M. 
0-058 
1 
Hazy. 
8 0 
0-083 
1 
„ 
8 30 
0-10 
3 
„ 
9 0 
0-077 
7 
Clouds. 
9 30 
0-20 
7 
Hazy. 
10 15 
0-13 
4 
„ 
10 45 
0-078 
10 
Clouded over. 
11 20 
0-071 
6 
Light clouds. 
11 50 
o-io 
. 7 
” 
Chemical 
intensity 
Amount 
of cloud. 
Sun’s disk. 
h m 
7 15 A.M. 
8 15 
9 10 
10 0 
11 0 
11 30 
12 0 
12 30 p.m. 
1 45 
3 0 
4 0 
4 30 
5 20 
6 10 
0-021 
0-10 
0-21 
0-060 
0-37 
0-12 
0-46 
0-077 
0-090 
0-061 
0-075 
0 054 
0-010 
Clouded over. 
Sunshine cloud. 
Clouds. 
Sunshine cloud. 
Clouds. 
Unclouded. 
Clouded over. 
Rain. 
Light clouds. 
Sun shining. 
July 1st, 1864. 
Barom. =758-2 milli 
Mean Temp. Dry bulb 14° -6. 
„ Wet bulb 11°-1. 
8 
15 A.M. 
0-067 
9 
Clouded over. 
9 
5 
0-11 
4 
Light clouds. 
9 
40 
0-12 
9 
10 
0 
8 
Rain. 
10 
30 
0-17 
Light clouds. 
11 
0 
0-19 
7 
Clouds. 
11 
45 
0-086 
Clouded over. 
12 
30 p.m. 
0-040 
1 
0 
0-20 
Sunshine. 
2 
15 
0-25 
5 
Unclouded. 
3 
45 
0-085 
Clouded. 
4 
30 
0-063 
5 
30 
0-050 
” 
July 
2nd, 1864. 
Barom. =752 millims. 
8 
10 A.M. 
0-042 
10 
Rain. 
10 
0 
10 
Rain. 
12 
0 
0-028 
3 
45 p.m. 
0-071 
Fair, clouded. 
4 
20 
0-046 
4 
50 
0-043 
Rain. 
July 4th, 1864. 
Mean Temp. Dry bulb 20° -3. 
Barom. = 
759'5 millims. „ 
Wet bulb ll°-8. 
7 
30 A.M. 
0-076 
8 
Clouded. 
8 
0 
0-11 
6 
” 
8 
30 
0-077 
9 
9 
0 
0-041 
10 
Rain. 
9 
30 
0-023 
10 
Clouded over. 
10 
10 
0-055 
9 
10 
30 
0-056 
9 
11 
0 
0-038 
9 
Rain. 
11 
30 
0-034 
10 
” 
4 R 
MDCCCLXV. 
