108 



Introduction to the Seventh Section 



The probable error on which the final determination of i 

 is founded, I have determined by drawing with the greatest 

 possible approximation a continuous curve through all points 

 laid down from the values contained in the foregoing table : 

 by multiplying each of the 56 equations of condition by 

 (°21 — \ } each has obtained that weight which it would have, 



if the observations had the accuracy of zenith observations. 

 In this manner the following table was obtained. 



« Aquihe 

 a Ursae Maj. 

 a. Hydras 

 /3 Ononis 

 >5 Draconis 

 « Cephei 

 66 Draconis 

 tj Cephei 

 a Virginis 

 10 Cephei 

 XX. 222 

 o Draconis 



Z.D. 



2CepheiHev. 



48 Draconis 

 8 Cephei 



£ Cephei 

 53 Draconis 

 e Cephei 

 33 Cygni 

 a Cassiopeia? 



49 Draconis 



1 « Libras 



2 a. Librae 



y Ursae Maj. 

 « Canis Maj 



XX. 391 



51 Draconis 

 x Cygni 



XXI. 32 

 20 Cygni 



/3 Draconis 



46 18 



61 32 



62 34 



63 6 

 63 20 

 63 26 



63 47 



64 7 

 64 54 



64 57 



65 26 



66 5 

 66 12 



66 54 



67 40 

 67 45 



67 56 



68 44 



69 6 

 69 13 

 69 41 

 69 50 

 69 54 



69 58 



70 32 



71 8 



71 24 



72 8 

 72 12 

 72 24 

 72 42 



72 48 



73 45 



0-76 

 0-79 

 0-79 

 0-79 

 0-79 

 0-79 

 0-80 

 0-80 

 0-80 

 0-80 

 0-80 

 0-81 

 0-81 

 0-83 

 0-85 

 0-85 

 0-86 

 0-86 

 0-86 

 0-86 

 0-86 

 0-86 

 0-86 

 0-86 

 0-87 

 0-88 

 0-89 

 0-90 

 0-90 

 0-90 

 0-91 

 0-91 

 0-93 



Cygi 



