Est T r == (3 : H r :: ri». ( P ): sin.^t,sin.

unde Hr =

ji». ("fr + p)(S r»«. ■'P

do sin. p

)

stn, *ir cos. p + sin. p cos. "PX ri«, 'SE' 1

y/ fi 2 — a § X cor. P - ~+- X 2

; obtinuimus ibo*j unde

cor. p = y/ ( i — sin. p )

2 (3 X cor. P-f- H 2 — H 2 sin. p

fi 2 — 2 j2 x cor. P-f-X 21 t proindeque Hr

y/ fi 2 — 2 |3 X cor. P + X 2

j3 sin. P ;/ /3*— 2 (3 x cor. P 4 - x 2 .

11 11 ■■ --- ■ ■ ■ —--. \r

(3 sin. P

Hr rr 0 rr y/ jS 2 — 2 (jX cor. P -{- x* ; quod e*rat demonstraudum .

Corollarium 11.

24 . Fiet igitur meridionalis perpendiculi ab-

• -a/r a * stn - P -

erratio Mr — M q =

e

Corollarium III.

25 . Meridionalem labentium corporum ab*

erra*