41 
prodibit ex bis in aequatione (6) substitutis 
2 s.Ç(o) Sin ô 
dç =Z — 
. d‘. 
1 ~h g ♦ <p(o) 
■ Cosin ô 2 (1 4- Z) 2 4-2 h > . a 
\ 1 -f- S’Ç(o)j 
(l + 
ï — e$(o) 
1 -p e(p(o) 
.2 
H 
— s.(p(oy 
2 ? . @(o) I 
“f 
4e.<p(o) 
\1 -t-?'(p(o)) (l-j-fÇl(o) 
s- 
+ 2 /(I=fÄ^i=Ä 
T lu -HW W 
U + £W j 
:)■ 
12 
h 2 \ • z 
.3 
+ 
• Ç(o)\ 
\ 1 -i- g 
<P(o)J 
. h 2 z 4 
quod denique si in numeros convertatur, fiet pro altudi- 
ne Barometri ~ o^.7G, et temperatura atmosphæræ — o°, 
, 121". 03914 Sin 0 . dz 
dç = — — — 
I Cosin 0 2 (1 -j- 2) 2 -j-0.005302436 2 
(1 -(-.09994130 2) . '\/ r + 0.0 117821 4 2 a + 0.006 189929 2 3 .. (1 3) 
+ 0 .0000104732 4 
§. 27 . 
Hinc igitur pro refractione horizontali obtinebimus 
1 2 I 039 1 4 dz 
|0 . 005302436 2 -|- 0.0 117821 4 £ 2 
(1-f- 0.99941302). V + 0.006489629 2 3 -j™0 000010473 2' 
6 . 
