LONGITUDE OF THE TORONTO OBSERVATORY. 



33 



TABLE II. — Continued. 

 Observations of August 30, 1883, Montreal. 



Normal equations : 



= +28.228f/(. 

 = +25.517f/fi' 

 = -,30001rfa 

 = + 7.700rfa 



da' 



-30 001 (/c + 7.700A 



+26.062(/c + 7.210rf( 



+26.062(/a' +126.627(/c 



+ 7.210f/o' - é.OOOrfc 



Whence do = +.025, da' = +.004 



nn tliis niglit a = +.400, n' = +.750, 



Wlienue total azimutli hefore reversal 

 " " after " 



" Colliniation (Lamp West) 



Clock error 



and probable error 



- 0.959 

 + 0.205 



- 4.000(/( +1.896 

 +30.000(/( -0.050 



dc = -.010, 

 c = +.020, 

 = n + da = +.425 

 = a'+ da'= +.754 

 — c + dc = +.010 

 = t + dl = -Om. 31.147 sec 

 = ±014 sec. 



dt - —.007, weight of dt = 25.73 



( = —0 m. 31.14 sec. 



Sec. Ill, 1888. 5. 



