19 
[ES 
ÉTUDE SUR LA RÉFRACTION COMÉTAIRE. 
Pour les A 
8 0.88 e + x —0.7 — o — —0.6 
9 0.93 e + x +0.4 — 0 — +0.5 
10 0.94 e + x —0.1 — 0 — 0.0 
11 0.98 e& +ix +1.9 — 0 — 1.3 
12 0.98 e + x +0.0 — 0 — +0.1 
13 0:98 e Lx 0.3 —0.— 0.4 
14 0.98 e + x —0.5 — 0 — —0.4 
15 0.99 e + x 40.0 =: o — +0.1 
16 0.99 e + x —0.9 — 0 — —0.8 
17 l'OL r 020 — 0.0 
18 1.00 e + x —0.5 — 0 — —0.3 
19. . 0.99 e E x +0.1 — 0 — +-0.2 
20 0.98 e + x —0.2 — 0 — —0.1 
21 0.97 e + x —0.5 — 0 — —0.4 
22 0.94 e + x —0.1 — 0 — 0.0 
23 O0. 6e + x +0.0 — 0 — +0.1 
24 0.86 e + x +0.6 — o — +-0.7 
25 0.82 e + x 40.7 — 0 — +0.7 
26 0.79 e + x +0.8 — 0 — +0.8 
27 0.79 e +x 40.3 = 0 — +0.3 
28 0.74 e + x:—1.0 —.0 — —1.0 
29 0.43 e + x +0.3 — 0 +-0.1 
30 0.29e"Æ 21407 —= 0 = +04 
31 0 15.e 7 0.6 0 — —1.0 
32 0.00 e.+ x +1.2 = 0.-— +0.8 
33 000e Pr 21.2 = 0 — 0.8 
3/4 0.00 e + x —0.1 — 0 — —0.5 
39 0:00 e + x +0.2 — 0 — —0.9 
Les équations normales dérivées 
923.36 e, 426.922 x —9.12 
26.99 e, +-35.00 æ 40.10 
desquelles on tire les deux inconnues 
D — DAS 
e, — +-0.591 
LE 
se 
0.258 
0.315 
des Az sont : 
= OO = 19 
MU DOUCE Ur 
Pour 
. 
— 
or 
Lo 
CO © 
SO E SNS SNOT S US 
QUO OTS OS MON OMS NOM ON OS ICS: NS 
S_S. S © 
= +0.2 
| 
ER 
= 
NO OO «1 QG © 00 © CN > NO > NO 
ne 
I — 
D == 
