132 



INITIATIVE IN EVOLUTION 



Effects of Pressure by Harness. 



Second.— The next stage of the inquiry demands that one 

 should show the patterns to be due to pressure. 



In the accompanying drawings the under surface of the neck 

 and the chest of each horse is shown with the collar in place, the 



Fig. 51. — Roan cart horse, examined 

 25th September, 1914. On left side 

 of middle line of the under surface 

 of the neck a short reversed area 

 three inches long, lying vertically — 

 none on the right side. 



Fig. 52. — Grey cart horse examined 

 25th September, 1914. Long central 

 feathering (F) proceeding vertically 

 upwards in middle line of neck 

 from whorl (W) and ending in a 

 crest (C) at the upper limit of 

 region, through which the collar can 

 move in active locomotion. 



centre portion of which is cut out so as to show the arrangement of 

 hair beneath, and some of the varieties are seen to extend for 

 several inches above it. In considering this process one ought to 

 watch the way in which the collar of a horse, as a rule, is seen to 

 move up and down as he trots, for in most cases, except in cart- 

 horses, the collar fits very loosely and is easily jolted upwards. 



