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THE AMEBIC AN NATURALIST [Vol. XLIX 



The remaining 31 young are more or less scattered along 

 the range of "piebald" forms. The gap between the two 

 classes is a considerable one and is certainly significant. 



Figs. 1-4 are diagrammatic and are intended to show 

 the two groups of spotted animals. Figs. 1 and 2 show 



