198 
L.(2 ACD 4- ZABC* + ZAB*D\ 
} 8.2193042 
- 11 BCD — 2C 3 ).-L I 
A 2 7 
L. 45 ( — 1 -—I . . . 8.6652584 
3 *V9K 3 16K4/ 
0.9681222 
7.8526S48 . 
• • ~ 
0".007 
+ 
2 ".03 9 
Log. B 3 (A — B) * . . . . 
8.8891945 
l'0g. /i • 
9.4948500 
0.9681222 
' 
9.3521667 
• ■ 
0 ".225 
+ 
l".Sll 
L. B\3AC + AB 7 — 5 
A 
. 8.5874835 
5 
Log. 
° 128 
0.9681222 
- 
8.1473657 . 
• • 
0".G1 4 
l".800 
unde sequitur summam adeo quatuor primorum termino- 
rum fore = 34 / 24 // 684, atque proinde, si pro quinto de- 
terminatum in antecedentibus adhibeamus valorem, sum- 
mam scilicet omnium quinque terminorum fore 3 4 / 25 // .044.’ 
Hæc igitur pro refractione habenda est horizontali, 
quæ, ex liypothesi paragraphi 49:næ, normali conveniet, 
