L001 
In stronger fiields R// becomes positive, as was also found to 
be the case by Van EvERDINGEN and Broqurren. We may, however, 
incidentally remark that the initial negative values found by Brcqurrer 
are much greater than ours, and that with him zero is reached in 
much stronger fields than with us. This leads us to suspect that the 
initial negative values we have obtained are to be ascribed to some 
cause which occasioned their occurrence to a much higher degree in 
BECQUEREL’S experiments; this would be the case, for instance, if our 
bismuth were purer than his, but still not yet quite free from 
impurity. If that were the case, then with absolutely pure bismuth 
we should, perhaps, at ordinary temperature, obtain nothing but 
increase of AH with the field, the rate of increase being slower in 
the initial stages. 
00 D= 
C0) [1 te We 
X EY A A a 
<4 en aaa ES — — 
© 2 
fe) x 
mi el dae 19 OMD ek 
—_— | Te) . . . 
| & EN we 
ror °| NN « mn ae sal 
= NEE | 
u = en te) Cll Ket 
cS NI We 12.0) S 
~ = = tt ps Ab s A eet Am 
o I= Ss = = © 1 
2 SO IO 
a X OS It RK LK | 
_— ‘ zijn 
ER Wee mm : 
a on 2 | 
= el EE anita ac | 
n = An | OER TO eeN A 
eS | | En Re A | 
> u 5, || 
x = lt Se neem Sue ee oe od 
De NIE GO Se co ES 
iS T ONREIN 
5 fol ee CN Cri KC LE CIE 
sa) = ——— = SSS == es ee z = = 
EE Te | COME. COD Mer 
el = He OO, OE i i 1 | 
EEn tE 1c) le oll Aal ed | 
> po + | 
tie es We ee = oe | 
Eee | ie | 
2 or a TR. oo Df Sie, Debs | 
5 Vena kes 70k WES a GU it ete 
ae) i + 
| nae : = | 
WEE == | 
8 bed en 
= LE Og AA IRS Di Omg eyes te Te 
2 | SAU NS SS eet rd eres 
ort SSS En ed TET ve ir = & we aie z= CO = EE 
af SSA FE ae = 
5 | RENS Sy Sn ie 
4 : fe RO AE heeel 
= se 
fe) i = : 
= (Ee En LS 
a 5 | 32 S$ 8 ib A S&S w a 
X% DS Se ed 
ell hace _ 
8 JT ++4++++++F 
he AS SO ERROR 
| |S 888 88S & 
| a Sik Sle, Gas OR Gee ces 
he eee ae ee 
