5 
Curious Lunar Refraction. 137 
spbaat enable it to hear very minute sounds, which it is known 
odo, A piano-forte having been sent ou purpose.to Exeter 
C ‘hange, the higher notes. hardly attracted the elephant’s no- 
tice, but the low ones aroused his attention. The effect of 
the higher notes of the piano-forte upon the. great lion in 
Exeter Change was only to excite his slehiing: which was 
very great. He remained silent and motionless. no 
sooner were the flat notes sounded than he sprang up, at- 
tempted to break loose, lashed his tail, and seemed so. furi- 
ous and enraged as to frighten the female spectators, ‘This 
was attended with the deepest yells, which ceased. wi 
~ music. Sir E. Home has found this inequality of the fibres 
in neat cattle, the horse, darts the hare, and thecat. Phil. 
rans. 1823, be 
95. Aaa Borealis. —Dr. L. ipsa fo ee at thy 
winter of 1820 and 1821, in Ice and, made numerous obser- 
vations on the polar lights. He states the following. as some 
of the. general results of bis observations 
Ist. The.polar lights are’ situated in the lightest and high- 
est clouds of our atmosphere. 2d. They are not confined 
to the winter season or to the night, but are present, in. ia- 
vourable circumstances at all times, but are distinctly visbie 
only during the absence of the solar rays, 3d. The polar 
lights have. no determinate connexion with the earth. oe 
He never heard any noise proceed from them. 5th. 
common koa 3 in. Iceland, Ma the arched, and in a Sova 
from N. E. ote w. 6th. Their motions are various, 
but always within the limits of the clouds + COREE them. 
—Edinb. Phil. Jour. Pol. 
26. Curtou: Lunar Rfadien —Dr. hy ina paper read 
before the Meteorological Society of London, and published 
in the Lond. Phil. Mag. Vol. LXIII. mentions a curious lu- 
nar refraction, which he observed some years ago. About 
seven o’clock. in the evening, the moon being five days old, 
he noticed a double refraction of her image of the following 
form and relative position ) , that is, two distinct ccopens 
instead-of one, andso pr. cisely ‘similar that it could not be dis- 
tinguished which was the moon and which the paraselene. 
Dr. F. thinks this. phenomenon analogous to the double re- 
fraction in certain laminated spars ; and (bat it may indicate 
that there existed atmospberical laming at that time—which 
