mech 
REPORTS FROM THE SECTIONS. 237 
| In the absence of a wire micrometer it might be of some service 
in estimating angles of position and istance ; for the times of 
transit may be made to indicate the distance, and the lines of the 
| triangle supply six known angles of position, as shown in diagram 
herewith, 
A 
c 
When the line O.M. is adjusted by the Le setase of a star, the 
sides are in the following angles of positio 
M to A Angle of position ... 26° 34 
O t M mn = i WE 
Soi ty Boke uf i 16898 : 
Bot B- % e ., 206° 34’ 
Mis 8 ..., fs .. 970° 0 
O to C ... 333° 26 
Before concluding I ‘eon like fe draw your attention to a 
change in — 3 belts since last year : there are two dark bands 
at about 45° declination, one on either side of the equator. 
