I'HY.sK S, 



IN 





\Vv M : V 



!, CM'ttllMMwd a* ft. 



r of Jurtirr, Srft,, r Ham 

 Ufti AIT* 



01 IN 



l) think* 

 II thr Iliolrt ill' <>f 

 III aflr. 



hat onlv aft-r 



'ion become appreciable; whilr 

 jw-l |irni|ttly niul !> 



n or radiation. 



lange of energy with th* riternal or 



rrady ainl 



1 he same molecule* ma) i 

 change energy promptly and q 



y radiation. The author n.l.h 



r the most part asMM-iatrl with 



of motions, appear to be primartlr 



an.l in afl 



it i. .n. Sutherland r I'hil- 

 Jfagmxine." January), in an arti 

 rf moletMtlat rnonstraten that 



km MI'/, uhirh <*cur* in the tn-at- 

 leattra lolecules, can Iw 



laWMteriat !' "f t in- atom oonpojlBJ 



1<I anal\ze mo- 



oatoinir attnirti"ii. I'., lu-f n jnnlint; 



-lecular structure, with time in 



lids has caused some people to fear 



ermanent standard of m be 



Rogers (American Association, IHOfi). 



tiioarisons that extend ov-r flrr 



chsdat that such fears are not wall 



ilea. jtasotelsfMss of Rotation.- 



^en the rvlati%- 



nin-lat ii-ii ami tho altM>Iutr- 



ireenhill in r. 15. 1WM, 



the cause of wide discusrion among 

 icians and |.h>-i,-i-.t-. fr.-m ! 

 at many in.- tiMilrr that ro* 



'inflation b only relatlvv, 

 in (Wieilemann's " Annalen." 



f thr Pn 



,** states thai the two views of energy 

 n*macTare that 



M a mathematical abstraction 

 onsiders it to be a 

 jratir 



hat --.Hii-'i.iv^ may 

 fS*anr that un- 



i Mrtvcf fiMSMlUi H ? 



* ' 



M which are the small ml- 



walls of a t ul-- ' foros 



::al r- 



H at iht 



,". ', :' - x . .. . . . 



ff^ liairtJ eaWi 



'.r ,<h*f. b I** IH! 



iMlUUoajioliW i ill ill W^4 



Aftaro or 



riod. b 



psndolum* tmd to awv* ha* A ngai 



with c.mcaot trnsion of tnt i ad. 



t an(i~ to thr 



SSS^ttS 



