416 
Extra METEOROLOGICAL OBSERVATIONS, 1846. 
ACTINOMETER. 
Makerstoun 
Mean Time 
of 
First Reading. 
Observation. 
Makerstoun 
Change} Effect! Mean | Sun’s} Mean Time 
in of of Alti- of 
Begun.|Ended. 60s, | Sun. | Group.| tude. | First Reading. 
JUNE 1, 2, 
45-4 | 52.4 
53-3 | 54-7 
57-7 | 64-4 
67-0 
76-4 
77:3 
86-7 
87-4 
60-8 
61:3 
71-0 
71-2 
81-5 
81-3 
60-0 
59-6 
68-6 
JUNE 2, 3, 
44-3 | 46-9 
46-6 | 45-7 
46-7 | 49-0 
48-6 | 47-5 
50-8 
49.3 
52-9 
51-4 
55-0 
53-0 
56-7 
54:8 
58-4 
Se. div. ] Se. diy 
| | 
.| Se. div. | Sc. div.| Se. div. 
1846. 
| +7-0 
+1-4 
+6-7 
+0-7 
+6-3 
+0-3 
1846. 
+2-6 
—0-9 
+23 
= 1-1 
+ 2:4 
Sos 
+26 
—1-0 
+ 2:5 
—1-4 
+2-7 
—1:3 
+25 
Observation. 
Begun.|Ended. 
Se. diy. 
Sun *8 | 50-5 
Shade -1| 48-8 
Sun -0 | 53-6 
Shade -0 | 51-2 
56-1 
53-7 
58-7 
Shade 
Sun 
Shade 
Sun 
Shade 
Sun 
Sun 
Shade 
Sun 
Shade 
Sun 
Shade 
Sun 
Shade 
Sun 
Shade 
Sun 
Change) Effect) Mean | Sun’s 
in 
605. 
Se. div. 
2, 3, 1846. 
+3-7 
—1:3 
+3-6 
—1-8 
+3-4 
-1-7 
+3-7 
—1-8 
+3-4 
—1-6 
+3-9 
—1:3 
+4-0 
+ 5-2 
— 0-6 
+5-5 
—0-7 
+5-1 
—0-8 
+5:3 
—0-9 
+ 5-2 
lai 
of of Alti- 
Sun. | Group.| tude, 
Se. diy.| Se. div. 
June 14 214 37™, 
June 24 17% 35™, 
June 24 204 35™, 
June 24 21» 50™, 
Breeze ; a few patches of cloud, none near the sun ; 
Cloudless ; haze on horizon. 
Sky very favourable. 
Splendid sky. 
June 24 215 59™ 45s, Screw withdrawn. 
hazy from horizon to 20° altitude. 
