Mr. H. J. ZWIERS. The system of Sirius according to the latest observations. 
JRE, Of 
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Fig. 1. Values of a. 
Differences hetw. obs. and comp. position-angles, 
uke A pas 
——— from Elements I ZN 
ts EN 
Be ne 5 5, Ie iif \ 
Pe NK 
+20 > » U i Mi +20 
| \ 
| \ 
1 \ 
The numbers indicate the weights i EN 
\ 
2 | 
Le of the normal places. | x 05 
t 
1 N 
1 
\ 
H MY 
+40 Xe +10 
\ 
\ 
N 
N 
\ 
\ 
a Me FOS 
+ \ 
\ 
N Je 
\ A 
0% 2 z f as \ ited 00 
Ci ze 
66 . 
-05 —05 
% Ld 
#0 B 
20 
as 
Proceedings Royal Acad. Amsterdam. Vol IL 
