3 
cs 4 
oe 
Chemistry and Physics. — 103 
y 
Mean deflection. 
One day | before —0'20| from 54 days of observation. 
At moon’s mak. declin., —0O"10| “ 563 ie: 
One day after —0°09) “ 55 = 
Mean, |—0°'13) “ 162 “ 
One day before, —0°04) “ 54 ? 
At moon’s min. declin., —0"07;) “ 62 - 
One day after, +0°14, “ 652 q 
Mean, +001; “ 158 - 
The results do not positively prove a deflection of the magnet 
depending on the moon’s greatest north and south declination. 
‘The amount resulting from the oe being of nearly the 
same magnitude as its probable er 
similar investigation with sels to the moon’s distance 
from the earth gives the following results. 
an deflection. 
One day. before, — 0" i from 50 days of observation. 
At moon’s perigee, —O'l a a 41 
One day after, —0 00 i ee " 
Mean, —0'12) 150 
One day before, —0"02} “ 55 és 
At moon’s apogee, —0°20) “ 53 _ 
One day after, —0-'13) “ 47 = 
Mean, —O°12% “ 155 + 
The difference being of the same order of magnitude as the 
probable errors, no conclusion as to the effect of distance can be 
drawn from them 
I propose ar to extend the discussion of the moon’s effect 
on the dedlinataost to the effect on the earth’s magnetic force. 
SCIENTIFIC INTELLIGENCE. . 
“ _ I, CHEMISTRY AND PHYSICS. 
1. On the Chemical Analysis of the Solar Atmosphere. —Kircunorr 
has communicated some further results of his remarkable —— 
on the constitution of the solar atmosphere, a notice of w already 
been given in this Journal. The author maintains that pec sun has an 
ignited gaseous atmosphere which encloses a core of still — tempera- 
ture, If we could see the spectrum of this atmosphere, detect 
the view lines which are characteristic of the metals existing in it, and 
_ should recognize the 
