( 131 ) 



but only for completeness, for especially for f lie faint nebulae these 

 data have but little value and especiallj- from the curves of table VIII 

 it may be easily seen that the material relatinii,- to the soulhcni hemi- 

 sphere cannot be compared witli that for the northern hemisphere. 

 Table IX gives for areas of 15° gal. longitude and 28° gal. latitude, 

 14 degrees on either side of the gal. equator, the brightness of the 

 light of the Milky Way expressed in terms of the mean brightness 

 of the northern hemisphere derived from the table of [). 18 — 19 of 



Fia-. 2. 



6 



2 

 O 

 2 



10- 



» / 



Graphical representation of table VII. 



8 

 O 



Graphical representation of table VIII. 



•2 FHonOf 



2\^ 



Graphical representation of table IX. 



C 



9* 



