200 
Mli. J. NORMAN LOCKYI^R ON THE RESULTS OBTAINED IN 
gives the lengths of exposures and times in totality which I drew up for use at a 
station on the central line in Novaya Zemlya :— 
Provisional Table of Exposures. 
No. of Plate. 
Exposures. 
Time in totality. 
Remarks. 
Slide No. 1. 
1 
Instantaneous 
— 30 seconds 
Before totality 
o 
w 
-20 „ 
3 
5? 
— 1.5 
4 
-10 „ 
5 
- 8 „ 
6 
3 seconds 
0 „ 
Totality begins 
7 
10 „ 
.5-15 „ 
8 
3 „ 
17-20 „ 
j 
Change to Slide No. 2. 
Chromospbere goes 
9 
2 seconds 
25-27 seconds 
^ 10 
20 „ 
29-49 
11 
40 „ 
51-91 
12 
5 „ 
93-98 
13 
Instantaneous 
100 
Chromospliere again \ isible 
14 
10 seconds 
102-112 
1.5 
Instantaneous 
114 
IG 
W aste 
Slide No. 3. 
17 
Instantaneous 
119 seconds 
A series of snapshots, hoping 
IS 
121 „ 
to include the flash 
19 
55 
323 „ 
20 
5 5 
125 „ 
21 
55 
127 „ 
22 
55 
129 „ 
23 
55 
131 
24 
5 » 
133 „ 
i 
Unfortunately, however, the expedition found it impossible to reach the central 
line of totality, and the duration was consequently shortened by 25 seconds. 
INIr. SiiACKLETON, therefore, made the necessary alterations in the exposures, and the 
following revised table Avas determined upon. 
Column 1 contains the numbers of the photographic plates, which Avill be quoted 
in subsequent references ; Column 2 gives the exjiosures ; Column 3 gives the times 
of exposing the plates in totality. 
The exposures were made by means of a card moved by hand in front of the prisms, 
and Avhen this Avas done as quickly as possible the exposures are tabulated as “instan¬ 
taneous.” 
