FROM THE HIGHER ATMOSPHERE. 495 
exposure under a serene sky. Homer uses the term Ajégos, in 
speaking of the reception of his hero, when overcome with 
cold and toil*. The same graphic poet applies the epithet 
Aibenyevns or Aidenyevélns, or frigorific, to Boreas, the north wind f. 
The Chorus, in the Antigone of Sornoctes, deprecates alike 
the pelting storm and the cold (aiégia) of inhospitable frozen 
tracts t. The word asdgios is employed by Herovorus, to signi- 
fy a chill, as well as a dry, Of the same import 
is the expression in Horace—Sub Jove yaar 
But the facts discovered by the athrioscope are nowise at 
variance with the theory that regulates the gradation. of 
heat from the equator to the pole, and from the level of the 
sea to the highest atmosphere. The internal motion of the 
air, by the agency of opposite winds, still tempers the dis- 
parity of the solar impressions ; but this effect is likewise ac- 
celerated by the vibrations excited from the unequal distribu- 
tion of heat, and darted through the atmospheric medium with 
_ the celerity of sound. Any surface which sends a hot pulse in. 
one direction, must evidently propel a cold pulse of the same 
intensity in an opposite direction. The existence of such pul- 
sations, therefore, is in perfect unison with the balanced system 
of aérial currents. 
ee Ot A, Sh ee ee Bhs i pe 
* Albeo wok xara Dedpentecvov ley & olxoy. Odyss. Lib. xiv. 318. 
T (Qs OF are recePetcel uPeédes Ards exzrostovlecs, 
Yuet imal frags aibenlevios Bogieo Iliad. Lib. xix. 357-8: 
Keel Boging wibenyeverns, wiya xtux xvawday. Ody lyss. Lib. v. 296... 
$ Avoabaray motryor cebgsa 
Kas durope Bee Pevryety Bern. Antigone, 357. 
|] QOsguedlegos yag On ess ro bdwe vs ve aiderec naa rhs Ogore. Euterpe, 
XXII. 
