Physics and Chemistry. 127 
SCIENTIFIC INTELLIGENCE. 
I, PHYSICS AND CHEMISTRY. 
: 1. Spectral analysis of the protuberances observed during a total 
eclipse of’ the sun.—The total eclipse of the 18th of August, 1868, 
observed at Wah-Tonne on the peninsula of Malacca by Rayet; 
with three prisms. When the image of a long protuberance o 
the eastern border of the sun was brought upon the slit of the 
f _—‘Spectroscope, a spectrum was seen with nine brilliant lines; of 
| __ these, four corresponded respectively to B, D, E and F; two cor- 
| ‘esponded to lines in 4; two to lines in the group G, and there 
| ig €s Sciences Janssen gives no details of the spectral lines observed 
by him, but communicates the important result that the spectra of 
might be seen by examining the margin of the sun’s disc, but did 
o 
_s«¥#F 2 one exactly correspon with C, one very nearly with 
4: 4nd one eight’ or nine degrees of Kirchhoff’s scale more re- 
le than ere was no ray at B or at 6; gion 
tw 
Same results. Mr. Lockyer also found that 
extended to a small a te upon the surface of the sun, and that 
