Ou 
coefficient =e Finally the complete measurements of three inorganic 
salts not yet previously *) deseribed, are reproduced here too. 
LiF 
eee A Ayo: [4 in Erg. id 
887° 1.780 1484.5 
973 1.740 1452.1 Bn = 1.798 — 0.0004375 (f— 850). 
1058 1.699 1421.3 
On. 
— increases from about 0,40 Erg per degree between 
Ot 
900° and 1050° to about 0,58 Erg between 1050° and 1200° C. 
LiCl. 
The temperature-coefficiënt 
es Ago: # in Erg: 
O 
626° 1.490 1274.8 a = 1.501 — 0.000432 (t— 600). 
683 1.465 1262.0 
132 1.444 1256.5 
a has a mean value of about 0,47 Erg per degree. 
hd Li,SO.. 
Ee: dyo: win Erg: 
9089 1.984 32135 
1005 1.945 3159 dio = 2.008 — 0.000407 (f— 850). 
jh hs 1.901 3100 
zi has a mean value of 0,50 Erg per degree. 
Ot 
LiNO3;. 
intr Ago: 7 in Ere: 
288° 1.162 1336 
341 1.732 135112 aie = 1.755 — 0.000546 (t — 300). 
454 1.770 1260.2 
546 1.621 1212.8 
ty has a mean value of 0,45 Erg per degree. N 
Ot 
NaF 
i: Ago: » in Erg. 
toe 1;932 1548.3 
Oo 
1119 1.875 1501.9 die — 1.942 — 0.000564 (f — 1000). 
1214 1,821 1445.1 
is rather constant, and has a mean value of 0,52 Erg per degree. 
1!) F. M. JArGer, these Proceedjngs 17, 555 and 571, (1914). 
