176 1.8.C. Proc. Ninth Ind. Sc. Congr. [N.S., XVIII, 1922.} 
Now recent researches of an experimental nature on the magnetic 
atom 
the sega = ee material. These cannsietc aieisonte were sailed 
” ma, ons. 
Sti ee ore cea rk by Oxley on sonia «oe staan that mag- 
netic atom-fields of 107 or 103 gauss must Humphrey’s theory 
of the _— of se lines under high eianiin’s Se eendiansn epi het fields 
of the s order of magnitude. 
Thed « siesieal converging and independent lines of research pt 
that a ssaeniaie unit of fixed value for all o> eg west the atom. 
ar there has been no.direct evidence for existence. "1 men- 
ti ool a. sly that Rutherford’s work le ite us ons believe in the pos- 
sible e nce of cual double ts of zero charge and mass 1, formed of 
one electron in — association with one negative electron If such a 
system were = ing it is conceivable — a intense local fields de- 
— con Ritz and others might 
meioey at blet saheig - val Soong be undetected by a-par- 
sieke ‘mothers as at — pract 
not aware that this pane possibility has — SS out 
quantitatively but if not, here is a problem for the mathem 
Kelvin is said to have remarked duri ing his J ee per 
the Gatsereisy, that he knew no more of the real meaning of sieveusine 
than he had done 50 years before. 
The same arnt could not truthfully be made nowadays, neverthe- 
less it tagiryr that the tobe has only been put back on to the deeper 
myste the electrical charge. 
Ou libly over the words positive - negative waa bb we 
can ance large bse oo in terms of a universal unit char pel of ~_ 
know a good deal, but no one has ever defined wh xt Se s by ch ae 
except pe chen refer to. - as a condition of volume density which, of 
course means nothing physically. 
It seems iikaty that aisteiea! charge, the basis of the atom will take 
its place alo: ongside — ation as a fundamental mystery and that any fap 
iy serpin into its meaning will involve those fuller conceptions 
and space which have been applied with such remarkable results by 
Binstein and by modern astronomical research 

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