124 THE AMERICAN MIDLAND NATURALIST. 
FIGURE 14. 
29 
The gigantic nebula M 338, in Triangulum. Even this immense nebula 
is not too large to have originated in the manner which Dr. Chamberlin 
assigns for the formation of the spiral nebulae. Photographed at the 
Yerkes Observatory. From Chamberlin, University of Chicago Press. 
