Bennett—Actinometric Observations of the Solar Eclipse. 367 
Mean time, | ,P*Posure Nores. 
H. M. s. 
3 49 103°4 © and sky quite clear. 
3 52 | 100-6 s é, 
3 55 102-2 * cs 
A 4 93-4 * Fe 
A 8 90°5 i ei 
A 95 a rr 
A 6 92°8 i i 
4 10 93°5 ke ‘ 
4 13 92°7 i 3 
4 15 89-5 = i. 
A ay 90-4 ts Xi 
4 19 90°8 © and sky clear. 
4 21 104 Till dark shade in standard colour. 
4 94 74:8 vy Mel pg - 
4 26 105 Till same as dark standard. 
4 30 TOO Woo op BEE 
4 32 79 Sun and sky clear. 
4 34 84 . op 
4 36 90 BA - 
4 39 84:4 ss i 
4 44 90 ” ” 
4 46 106 = nS 
4 48 102°6 PA a 
4 50 102 iS a 
4 52 111 i ‘ 
4 54 99 * », [vead rather soon. | 
5 0 130 4 sf 
Br 8 126-4 i , 
It may be mentioned that it would be quite easy to make an error 
of 10 per cent. in recording the proper exposure. 
From 4 hours 
17 minutes to the end of the observations, a friend of mine held 
SCIEN. PROC., R.D.S., VOL. IX., PART III. 
2D 
