374 TRANSIT OF VENUS, 1874. RODRIGUEZ. 



Table III. Azimuth Error of the Transit Instrument at Point Venus concluded. 



Day. 



Stars. 



Azimuth Error. 



Observed. 



Adopted. 



1874. 

 September 



October 



November 



December 



21 A Octantis S.P. and o Cygni 



B Octantis and e Pegasi 



C Octantis and f Pegasi 



22 A Octantis S.P. and B Octantis 



C Octantis and ij Aquarii 



r Octantis and K Piscium 



23 B Octantis and o Cygni 



o Octantis and 26 Ceti 



z5 C Octantis and o Aquarii 



r Octantis and i Piscium 



I ff Octantis S.P. and Sirius 



20 C Octautis and A Aquarii 



T Octantis and o Pegasi 



o Octantis and Ceti 



23 o Octantis and p Andromeda? 



z Octantis S.P. and Lacaille 634 



24 r Octantis and K Piscium 



o Octantis and o Andromedse 



25 o Octantis and 20 Ceti 



26 2 Octantis S.P. and Lacaille 634 



27 Lacaille 1029 and/Tauri 



Lacaille izo3 and e Eridani 



28 Lacaille 1203 and e Eridani , 



29 Lacaille 1 146 and a Arietis 



Lacaille I2o3 and o Tauri 



Lacaille 1 592 and f Tauri 



1 6 Lacaille 248 and y l Eridani 



Lacaille 1592 and 37 Tauri , 



23 Brisbane 6o58 S.P. and Lacaille 25 12 , 

 <r Octantis S.P. and Lacaille 25 12 ... 



24 Lacaille 2296 and e Orionis 



Lacaille z5i2 and a Orionis 



25 Least Squares ,. 



28 Lacaille 3274 and i\ Cancri 



7 Lacaille 764 and z Octantis S.P 



Lacaille 1 592 and * Tauri 



Lacaille 634 and z Octantis S.P 



Lacaille 1592 and a Tauri 



9 Lacaille 634 and f Ceti 



Lacaille 1146 and Brisbane 5607 S.P. 



5-9 

 4-8 

 6-6 



2'4 



4'0 



6'2 

 2' I 

 I ' I 



0-8 



2'0 



6-4 

 2-9 

 2-5 

 1-9 



0-8 

 0-4 

 3-8 



2-8 

 3-3 

 3-3 



2'6 



1-9 

 6-6 

 6-3 



-5o-8 

 -49-3 



-55-9 

 -61-7 



- 8-4 



4-6 



5'2 



4'9 

 4-0 

 4-8 

 4-8 



- 4-1 



- 0-9 



2'O 



- 2'5 



- 3-8 



+ 3-o 



+ 2-4 



+ 1-8 



- 6-4 



5o - o 



-54-9 



- 8-4 



4 '6 

 4'8 

 5-3 



In the instances marked " Least Squares " Clock-Errors have been formed by use of all the Clock-Stars observed in the day, 

 each containing the Azunuthal Error as an uuknown quantity ; and the magnitude of the Azimuthal Error has been deter- 

 mined so as to make the sum of squares of residual discordances minimum. 



