503 
§3. — Milieu d'indice 1,5841 (aniline à 22°5). 
Si 
S' 
S 
§2 
£ 
- 44°23' 
- 6°41' 
- 4°13' 
- 48o36' 
- 48°58' 
1,5544 
- 42°23' 
- 2°54'30" 
-1°50' 
- 44° 13' 
- 44092 ' 
1,5678 
- 39o23' 
- 0°17' 
- 0 ° 11 ' 
- 39»34' 
- 39o35' 
1,5817 
- 38°51' 
Oo 0 ' 
Oo 0 ' 
- 38°51' 
- 38°ol' 
1,5841 
- 35o23' 
+ 1°36'38" 
+ 1 ° M 
- 34o22' 
- 34o20' 
1,5979 
- 25°23' 
+ 3°46' 
+ 2°23' 
- 23o 0 ' 
- 23° 11'30" 
1,6284 
- 10°23' 
+ 4°51' 
+ 3o 3'30" 
- 7ol9'30" 
- 8°20'30" 
1,6546 
(maximum) - 1°38' 
+ 4°59'30" 
+ 3o 9' 
+ l-o31' 
- 0 " 3'30" 
1,6590 
+ 9°37' 
+ 4°45'30" 
+ 3o 0 ' 
+ 12°37’ 
+10°29' 
1,6519 
+ 24°37' 
+ 3°33'30" 
+ 2° 15' 
+ 26°52' 
+ 24°45' 
1,6244 
+ 3 4°37' 
+ 1°32' 
+ 0°58' 
+ 55«35' 
+ 34°32'30" 
1,5975 
+ 38°49' 
O» 0 ' 
0 o 0 ' 
+ 38 n 49' 
+ 38o49' 
1,5841 
+ 42°37' 
- 1°56' 
- lol3' 
+ 41°24' 
+ 42° 43' 
1,5725 
+ 46°37' 
- 4°51' 
- 3o 3’3 j" 
+ 43 c 33'30" 
+ 46°53' 
1,5600 
Dans ce liquide, la déviation passe 
deux fois 
par zéro et 
pré- 
sente un maximum en valeur absolue. 
§4. — Milieu d'indice 1,6603 (naphtaline monobromée à 18°). 
Si 
3' 
8 
^2 
£ 
ni 
+ 50O47' 
- 22 c 59'30" 
-13°36'30" 
+ 37°10'30" 
+ 52°26'30" 
1,5438 
+50O37' 
- 22°43' 
-13°27' 
X 
+ 37ol0' 
+ 52°15' 
1,5445 
+ 49037 ' 
- 21» 9'30" 
- 12°33'30" 
+ 37o 3'30" 
+ 51° 7 / 
1.5477 
+ 48°37' 
-19°42'30" 
-11°43'38" 
+ 36°53'30'' 
+ 49°59'30" 
1,5509 
+ 46°37' 
- 17o 3'30" 
-lOoll' 
+ 36o26' 
+ 47o45'30" 
1,5574 
+ 44o37' 
-14o45' 
- 8°49'30" 
+ 35°47'30" 
+ 45°32'30" 
1,5641 
+ 42°37' 
-12°44' 
- 7«38' 
+ 34o59' 
+ 43°21'30" 
1,5704 
+ 40°37' 
-10°58' 
- 6o35' 
+ 34o 2' 
+ 41°11'30" 
1,5769 
+ 38o37' 
- 9o25' 
- 5°39'30" 
+ 32®57'30" 
+ 39o 2'30" 
1,5836 
1913. — SCIENCES 
54 
