X bh. XIII b. — 23 — 
n cos à (Struve 1875.0). 
BESSEL. 
AGE Var. 
OI © 'O © 
CC HDO Qu) 
-O DJ OR 
Q © = D D 0) 
ON +R — Oo Ur 
= © OUR 01 
X bh. XXII b. 
