246 



POOR 



involving {t-T^^, making T^^ respectively 1889 Sept. 30.5 for all 

 dates in the first appearance, and 1903 Sept. 18.5 for all dates 

 in the third appearance. Thus were obtained : 



Table VIII. 



Perturbations in R. A. and Decl. 



Subtracting these perturbations from the differences for corre- 

 sponding dates, as given in Table VI, I have for the final differ- 

 ences between observation and theory, the following : 



