Astronomy. 435 
(p. 222), says: “ An examination of the beautiful photographs made 
ur party i 
has called the chromosphere. 
“This interesting fact is indicated by many different considera- 
tions. The directions of maximum radiance do not coincide with 
those of the great beams of the corona; they remained constant 
while the latter were variable ; there is a diameter, 
corresponding to the solar axis, near the extremities o c 
radiance upon the photographs is a minimum, whereas the coronal 
beams in these directions were especially marked during a great 
part of the total obscuration. The corona beams stood in no ap- 
parent relation to the protuberances, whereas the aureole, seen upon 
the photographs, is most marked in their immediate vicinity. In- 
deed, the great protuberance, at 230° to 245°, seems to have formed 
a southern limit to the radiance on the western side, while a sharp 
northern limit is seen on all the photographs at about 350°, the in- 
termediate arc being thickly studded with protuberances, which the 
moon displayed at the close of totality. The exquisite masses of 
flocculent light on the following limb are upon the two sides of that 
curious prominence at 93°, which at first resembled an ear of corn, 
comp it. Whatever of this aureole is shown upon the photo- 
graphs, was occulted or displayed by the lunar motion, precisely 
as the protuberances were. The variations in t the 
I id ng to a farther knowledge of the chromosphere. ey 
are manifest in all the photographs by your parties h I have 
, but are especially ke those of shortest exposu 
such as the first one mwa. In some of the later views 
they may be detected on the other side of the sun, though less 
panes But the very irregular and #8 ed outline of the chromo- 
Sphere, as described by Janssen and 
fection.” : c 
3. Observations of Prof. Pickering’s party upon the Eelipse.— 
Prof. E. C. Pickerrne who observed at Mount Pleasant, Iowa, 
concludes his report upon the eclipse as follows (Jour. Frank. 
