141 
numerically highest point in the blue-green and then fell steeply in 
the green passing through a minimum at about 580 uu; it then 
slowly increased again as it approached the red (Fig. 2). 
TAY Bei Ey 3: 
s= fF) MnSb (saturated) TAMMANN 
N 2 (42) é (mm) | z(min.) + de 
40 435 — 148,9 | — 22,35' 0,15’= 0,75%, 
35 466 — 153,5 | — 23,02 0,06 0.25, 
25 483 — 154,7 | — 23,21 0,04= 0,17; 
25 503 — 154,6 | — 23,19 0035013, 
40 530 — 136,4 | — 20,46 0,03 =0,15 ,, 
Zl 567 — 115,7 | — 17,36 0,01 = 0,06 „ 
25 615 — 119,0 | — 17,86 G02 O01 5 
35 675 — 125,0 | — 18,75 002 0,1), 
A second specimen of MnSb coming from Prof. WxpDEKIND gave a 
similar dispersion curve agreeing in character with the above. The 
rotation however always remained smaller than in the case of the 
It can therefore probably be assumed that this 
corresponds better to the ferromagnetically best compound Mnsb, 
whose existence has lately been established with great probability by 
Hinpert and DircKMANN '). 
first 
\ 
specimen. 
TABLE: 4 
ef) MnSb (saturated) WEDEKIND 
N ken) | A(mm) | <(min.) | + de 
30 435 — 96,1 — 14,41’ 0,16'—= 1,1°/ 
25 deer 1 978 — 14,57 0,09 = 0,6, 
20 503 | —97,0 | —14,55 0,05 = 0,3, 
21 530 — 91,0 — 13,53 005: = 02". 
20 S67 | 'L800-| — 1214 0,01 =0,1, 
20 615 — 81,7 — 12,25 O02 O72, 
21 Glan Sh |). 13,14 0,05 = 0,4 , 
1) Cf. Koraro Honpa loc. cit. E. Wepexinp, Chem. Ber. 40 
S. Hitpert and Tu. Dieckmann, Chem. Ber. 44 p. 2833, 1911. 
p. 1266, 1907 
10% 
