PLACE OF ORIGIN OF THE MOON 27 
bling Fig. 3. In this map, which is drawn in orthographic projection, 
there is no tangential distortion, and the appearance is that which the 
Earth would have if seen from a great distance. The vertical line 
is a meridian; the horizontal is a projection of the inner circle shown 
in Fig. 1. The continents and islands at the edges of the disk have 
Fic. 3 
been allowed to project out beyond the ocean beds in order to make 
more evident the systematic grouping of the continental masses on 
one side of the globe. With the exception of Australia, the Antarctic 
continent, and a small part of South America, all represented in the 
lower half of Fig. 1, there is no important land on the water side of 
the globe, not shown in Fig. 3. 
