Total Solar Eclipse, 1901. Dutch Observations. Plate I. 
Dutch Eclipse-Camp 
5 near Karang Sago, Sumatra. 
May 1901. 
A ‘> 
(0) [ 
| LEGENDA. - 
a. Axis with four coronagraphs; a’ clock. Rs 
b. Coronagraph f —3,42M. NS 
c. Coronagraph f — 11,77 M. S 
d. Dark hut (plateholder of ec) 
e. Siderostat with coelostat-mirror. 
o f. Siderostat. 
© g. Small slit-spectrograph 
mS ZN h. Large slit-spectrograph. 
hd i. Spectroscope. 
gt j. Prismatic camera. 
NS k. Electrical auxiliary apparatus 
7, Polarimeter. 
m, Actinometer. 
n, Galvanometer. 
o. Pyrheliometer. 
p- Universal-instrument. 
q. Photometer. 
r. Meteorological instruments. ‘ 
s. Declinometer. 
| t. Tower with wind-vane, anemometer etc. 
u, Recording instruments for terrestrial magnetism and electrical potential 
Scale) 1500) of the atmosphere. 
Proceedings Royal Acad. Amsterdam Vol. LV. 
