EXPERIMENTAL 



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normal arrangement. Second, that they are produced by pressure 

 of the harness. Third, that examples of them be forthcoming in 

 young horses never exposed to the action of harness. 



First. The normal arrangement of hair on the under surface 

 of the horse's neck shows an even stream passing from the head to 



Fig. 50. — Side view of domestic horse, showing eight areas of reversed hair, 

 A, B, C, D, E, F. G, H, all of which were situated under portions of the harness. 



the chest, where it is interrupted by the pectoral patterns, and during 

 that course resembles precisely the other normal streams in this 

 and other mammals. 



The opponent asks, " How do you know this is the normal 

 slope, and that the patterns you describe are not normal, and what 

 you describe as normal is not a variation ? " This is a perfectly 



