TOTAL DAYLIGHT AT KEW AHD PAHA. 
557 
The integrals of daily mean chemical intensity obtained from the numbers in column 3 
of the preceding Table by the method described in the above-mentioned memoir, are as 
follows : — 
Daily Mean Chemical Intensity. 
July 3rd, 1866. 
(Intensity DO acting : 
. . . 138-1 
for 24 hours =1000.) 
July 18th, 1866 . , 
. . . 119-4 
„ 4th „ . 
. . . 125-1 
„ 20th „ . , 
. . . 119-5 
„ 5th „ . 
. . . 140-7 
„ 23rd „ . 
. . . 106-6 
„ 9th „ . 
. . . 91-6 
„ 25th „ . , 
. . . 67-7 
„ 12th „ . 
. . . 229-0 
„ 27th „ . . 
. . . 35-8 
» 11th » • 
. . . 60-6 
Monthly mean . 
. . . 112-2 
On the days omitted the number of observations made was too small to enable a deter- 
mination of daily mean intensity to be made. 
In a similar manner the daily mean chemical intensity for every day on which a 
sufficient number of observations were made, has been determined from April 1, 1865, 
to April 1, 1867. Table II. contains the numbers thus obtained. 
Table II. — Daily Mean Chemical Intensities at Kew, 1865-66-67. 
(Intensity 1*0 acting for 24 hours = 1000.) 
Date. 
Intensity. 
Date. 
Intensity. 
Date. 
Intensity. 
Date. 
Intensity. 
Date. 
Intensity. | 
1865. 
April 1. 
69-2 
1865. 
May 12. 
105-7 
1865. 
June 23. 
128-1 
1865. 
Aug. 24. 
101-3 
1865. 1 
Oct. 10. 
38-9 
3. 
41-0 
15. 
40-1 
26 . 
16-7 
25. 
62-3 
ii.! 
29'5 
4. 
35-9 
16. 
99-4 
27- 
79-5 
28. 
44-3 
12. 
37-9 | 
5. 
28-6 
17. 
60-6 
28. 
87-2 I 
29. 
85-7 
13. 
19-4 ; 
6. 
66-0 
18. 
129‘8 
29. 
15-2 
30. 
80-3 
16. 
18-5 ! 
7. 
42-9 
19. 
109-1 
July 3. 
179-5 
31. 
70-1 
17] 
25-9 
8. 
96-7 
22. 
220-8 
4. 
120-5 
Sept. 1 . 
88-1 
20. 
24-0 1 
10. 
158-2 
24. 
122-1 
5. 
73-1 
6. 
195-5 
25. 
26-8 
11. 
78-1 
26. 
160-0 
6. 
103-9 
7. 
244-7 
Nov. 3. 
14-8 i 
12. 
50-5 
29. 
115-5 
7. 
132-0 
8. 
189-5 
4. 
16-6 j 
13. 
86-8 
30. 
100-0 
10. 
110-3 
11. 
64-2 
6. 
12-0 1 
15. 
36-3 
31. 
64-6 
n. 
133-3 
12. 
1 113-4 
7- 
9-2 
18. 
110-9 
June 1. 
53-1 
14. 
124-7 
14. 
129-8 
8. 
12-0 
20. 
73-6 
2. 
38-0 
19. 
103-9 
15. 
165-7 
9. 
15-7 
21. 
125-3 
6, 
76-0 
20. 
110-4 
18. 
113-4 
10. 
16-7 
24. 
82-4 
7. 
177-0 
21. 
64-9 
19. 
75-4 
11. 
17-6 
25. 
87-9 
8. 
64-6 
24.; 
26-0 
20. 
102-2 
13. 
12-9 
26. 
89-0 
9. 
144-5 
28. 
90-9 
22. 
97-9 
15. 
13-9 
27. 
106-6 
12. 
108-7 
Aug. 1. 
46-7 
25. 
50-7 
23. 
12-9 
May 1. 
54-9 
13. 
135-5 
4. 
74-0 
28. 
64-2 
24. 
12-9 
2. 
91-6 
14. 
96-2 
8. 
100-0 
29. 
24-9 
27. 
13-9 
3. 
84-0 
15. 
68-0 
14. 
88-1 ! 
Oct. 2. 
44-0 
30. 
6-5 1 
4. 
59-1 
-19- 
89-7 
17- 
100-0 ; 
3. 
34-3 
Dec. 1. 
2-8 I 
5. 
61-1 
20. 
61-5 
18. 
74-0 
4. 
12-9 1 
2. 
8-3 | 
8. 
68-8 
21. 
98-7 
21. 
137-6 
5. 
44-5 1 
4. 
9-2 1 
9. 
115-9 
°>2 m 
53-8 
114-3 1 
6.1 
39-8 
8. 
5-6 
4 g 2 
