140 



THE APPAEEXT POSITION OF THE ZODIACAL LIGHT. 



second column contains the numbers of the first and last charts employed in 

 forming each group, which are given in order to assist in identifying the portions 

 of previous tables here combined. When the observations of any group were not 

 all made in the same season, the numbers given in the second column will differ 



TABLE II. 



considerably. The third column gives the extreme longitudes comprised in each 

 group, and will also assist in identifying the original observations. The next six 

 columns give the number of observations comprised in each group, the mean lon- 

 gitude to which they relate, and the mean results for four other quantities ; first. 



