The following tables contain the numbers of stars per square centimeter. 

 At the base of the tables is given : 



1) The co-ordinates of the centre, 



the designation of the original negative, 



the year, the date and the Greenwich Mean Time and the length of 

 exposure. 



2) The total number of stars on tbe plate. 



3) The number of counted stars in the four quadrants, 

 tlie average density of the quadrants, 



the total number of counted stars and the average density of the plate. 



