170 
the observations of the two years that the ratio of the mean 
velocity of the wind on days when no rain falls, as compared 
with that on rainy days, varies least iu the spring, and most 
in the winter quarter. 
Mr. W. L. Dickinson read a Paper containing the results 
of calculations relative to the Eclipse of the Sun, and to two 
Occupations of the star Aldebaran by the Moon, visible here 
this year. The calculations have been made for the Obser- 
vatory of Robert Worthington, Esq., F.R.A.S., Crumpsall,, 
near Manchester, Lat. 53° 30' 50 //# 0 N., Long. 0 h 8 m 56 3 T6 W. 
The Elements used in the computations have been obtained 
from the Nautical Almanac. 
The Partial Eclipse of the Sun, October 8, 1866, is partly 
visible at the Observatory, and 
h. m. s. 
Begins 4 19 39 ) Mean Time at 
Greatest Phase 5 21 35 j Greenwich. 
At Crumpsall the Sun will set at 5h. 27m. 
Magnitude of the Eclipse (Sun’s diameter = 1 ) 0*480. 
Angle, from North Pole, of first *\ 
contact, 43° I towards the West for 
Angle, from Vertex, of first con- f direct image, 
tact, 76° J 
The Occupations of the star a Tauri (Aldebaran) by the 
Moon. 
1866. 
September 28tb... 
November 22nd. . . 
Disappearance. 
Sidereal 
Time at 
Observatory. 
Mean 
Time at 
Observatory. 
Mean 
Time at 
Greenwich. 
Angle from 
North! Yer- 
Point. j tex. 
h. m. s. 
3 41 36 
1 53 44 
h. m. s. 
15 10 56 
9 47 6 
h. m. s. 
15 19 52' 
9 56 2 
o ! o 
84 | 75 
73 44 . 
Reappearance. 
Sidereal 
Mean 
Mean 
Angle from 
Time at 
Time at 
Time at j 
North 1 Ver- 
Observatory. 
Observatory. 
Greenwich, j 
Point. j tex. 
1866. 
h. m. s. 
h. m. s. 
h. m. s. 
o j o 
September 28th... 
4 51 41 
16 20 49 
16 29 45 
295 303 
N ovemher 22nd... 
2 51 55 
10 45 8 
10 54 4 
310 | 290 
