Knoiileil, 



•dnr 





1:="% 





^■ 



.i^< 



1 



NORTH, 



THE RINGED PLAINS OF THE MARE NUBIUM. 



From a PlLctcgi-apli taken 1896, Si'plriiibi.-r 2'J. Ki-Uli. l'ari> Mean Time, with tlif Liivat Kquatorial Coiule of tlu- Paris Observatory. 



Scak' :— Diamotui- of JIooii, 2'i inolies. Moou's Ago, 22d. Ulli. 



