Prof. Twining on the Aurora of 1859. 395 
bright contiguous stars in the end of the ate s tail,—show- 
ing an altitude, at the cloud’s middle line, of n two min- 
Sold Ieayinie a far less dense and bright accumulation of mine 
ioe ian all that quarter. 
moving westward was stri ee repeated. The aieud eet baweses 
in ae instance was longer and less definite in sha se 
m ten o'clock to 12h 15™ T did not observe. "At this last 
ititiionsa time the auroral twilight shone Wie tie in the 
T observed again from 2° 45" to 3". The pare and dome 
were more regularly and completely formed than previously at ten 
o'clock, and nae e than I aie seen them in either of oe fein 
motion have not been so numerous as at hae At the spot 
rab? ee we 2 
sp 3 wing streamer be taken as the visible path of 
bes hs eaten he lowing rem or ade so, to the great thermal cur- 
= of — earth, Such 8m a normal current, in conformity with known laws, will ex- 
influence of the th 
hak ane upon ie fees thus ae aioe magnetic intensity at the earth’s surface, and, 
* 
