SOUTH. 



WEST 



EAST. 



II. -PHOTOGRAPH OF THE NORTH POLE OF THE MOON WHEN 216 HOURS OLD. 



Taken by MM. Paul and Peospee Hexet with their 13-inch refractor, at the Paris Observatorv. on the 29th March, 1890. 



Enlarged 15 diameters from the image in the principal focus. 



Virect Phfito Engraving Coiupanyi, 9, Barnshurg Pavk, S, 



