366 
ME. WAEEEN DE LA EUE ON THE 
N 
W 
At 4*^ 35"’, when the heliograph was pointed to the west of the meridian, observations 
were made to determine the deviation of the position-wires, from an angle of 45° to a 
parallel of declination, by the method described by Mr. Caeeington' in the ‘ Monthly 
Notices ’ of the Astronomical Society, vol. xiv. p. 153; and the observations were repeated 
on July 19 at 11^ 55"’, when the heliograph was pointed east of the meridian. 
July 18, 4*’ 35"’, by Frodsham 3094 uncorrected. 
Tlie sun’s limb made contacts with wires I. and III. 
sec. 
at an inteiwal of 194 
„ „ 195 
,, 1^ 
Sum 582 
and with wires II. and IV. 
at an interval of . . . 188’5 
„ 191 
„ 188 
567’5 
582 log =3-7649 
567*5 log =3-7540 
Angle of <p 45° 43'*5 log tan. =0*0109 
July 19, ll'> 55"’. 
The sun’s limb made contacts with wires I. and III. 
sec. 
at an interval of 189*5 
... 188 
99 99 
Sum 377*5 
