KOVAYA ZEMLYA DURING THE ECLIPSE OF THE SUN, 1896. 
2G1 
Revised Table of Exposures. 
No. of Plate. 
Exposui’e.s. 
Time in totality. 
Remarks. 
Slide No. 1. 
] 
Instantaneous 
— 30 seconds 
0 
)) 
-20 
3 
-10 
4 
? J 
0 
Totality begins 
5 
3 seconds 
3-6 
G 
10 „ 
8-18 „ 
7 
3 „ 
20-23 „ 
Chromosphere goes 
8 
•2 
25-27 „ 
Slide No. 2. 
9 
Waste 
10 
2 seconds 
35-37 seconds 
11 
40 „ 
39-79 „ 
\-l 
5 „ 
81-8G 
13 
Instantaneous 
88-89 ,, 
C!jronios])herc reappears 
14 
10 seconds 
91-101 „ 
15 
Waste 
IG 
3) 
Slide No. 3. 
vSun reappears 
17 
Instantaneous 
109 seconds 
18 
33 
no „ 
A series of snapshots 
19 
113 „ 
20 
115 „ 
21 
Waste 
22 
Instantaneous 
117 „ 
23 
119 „ 
24 
33 
121 „ 
As the final reduction of the photographs will take some considerable time, I think 
it of importance to give at once, for the benefit of other workers, reproductions of 
two of the best photographs obtained. These are reproduced in Plate 9. 
No. 4 is given in two sections, on a scale of 3'4 times that of the original negative. 
It was taken instantaneously at the exact beginning of totality. The principal arcs 
are those of hydrogen and the II and K lines seen in the spectrum of calcium; these 
long arcs, together with the numerous short ones, represent the spectrum of the sun’s 
limb at the moment of totality, Mr. Shackleton determining the exact instant by 
watching the disappearance of the bright continuous spectrum with the aid of a 
small direct-vision slitless spectroscope. This plate may undoubtedly be said to 
have been exposed within 0'5 second after the commencement of totality; it had 
an instantaneous exposure, and this was sufficient to give a record of the spectrum 
from D 3 to in the ultra-violet. 
