for determining the difference of meridians^ &c. 



Actual Calculation and Results. 



Computation of the observations of the i8th. 



1st Combination. All the observers taken jointly. 



119 



( — 



6 



i8'>i5'"4o'-37 

 18 45 44-13 



io''29°'34'*4 

 10 49 32 '8 

 10 59 33 -6 



Mean. Mean. 



18 32 21 -88 10 46 13-6 



A — B = 

 B'— C'= 



C" — Z" = 



7 46 8-28 

 o 8 22 '43 



7 54 3071 

 -7 45 4-31 



o 9 26*40 

 --4-82 

 — 0*17 



O'CO 



9"54'"52'"o 



10 14 54 'O 



Mean. 

 10 4 53 -o 



B~ B'= 



C- C"= 



9h46»29'75 

 10 6 31 '40 



Mean. 

 9 56 30-57 



+ 41 20 '60 

 — II 57-56 



+ 29 23 -04 

 Gain of mean on 7 g 



Sid. Time - I -4-»2 



C" 

 9'»4i' 



9 5» 

 10 I 



10 II 



10 21 

 10 41 



Z' 



'46s -2 

 49-6 



50-3 

 48-6 

 46-9 

 47-2 



Mean. 

 10 8 28*13 



i7'»26'"46'-25 

 17 36 51 -02 

 17 46 53 -62 



17 56 53-31 



18 6 53 -42 

 18 26 57*05 



Mean. 

 »7 S3 32-44 



Gain on M. T. of B— o -17 

 of C — o -00 



I 



o 9 21 -41 1= Corrected difference of Longitudes. 



Computation of the observations of the 19th. 

 1st Combination. All the observers taken jointly. 



A r- 

 i7«»29'"29'-6 

 18 Z9 52-5 

 18 49 43-4 



B 



9" 39'"3o'-4 

 10 49 41 -I 

 10 59 30-4 



9° 44"49'-4 



9 54 49 '9 



10 34 49 -7 



10 54 53 -4 



Mean. 

 18 19 41 •83 



A-B = 

 B'— C'n 



C"— .Z" = 



Mean. 

 10 29 33-93 



+7 50 7 '9'=^ 

 + 8 16-II 



+7 58 24-01 

 —7 49 275 



9 21 -26 



+ 0-33 



— 0-02 

 0-00 



Mean. 

 10 17 20 -60 



B — B'= 

 C'-C"= 



9''36 33"io 



9 46 36 •(>$ 

 10 26 33 -70 

 10 46 37-55 



Mean. 

 10 9 4-49 



+ 12 13-33 

 — 14 13-02 



I— I 59-69 

 Gain of mean on T 



Sid. T. - - I + °'33 



C" 



Z" 



9" 42'"o«-45 



9 5» 53-65 



10 I 56-50 



10 22 2*45 



10 32 24-75 



10 41 59'8o 



10 51 



11 2 



59-60 

 3-40 



i7''3o'n56'-55 

 ij 40 5t -34 



17 50 55 '77 



18 II 5*09 



18 21 

 18 31 

 18 41 

 18 51 



28 -65 

 5.58 

 7-11 



12 -50 



Mean. 

 10 23 17-57 



Mean. 

 18 12 20-32 



Gain of B on M. T. — 0-02 

 of C O'oo 



0921 •57J=: Corrected difference of Longitudes. 



