EXPERIMENTAL 



133 



This will explain why the patterns often extend upwards above 

 the proper position of the collar, but it must also be remembered 

 that never have I found a pattern higher up in the middle of the 

 neck than a loose collar can reach when jolted. (Close to the 

 lower jaw there is a whorl or pattern often found which belongs 



Fig. 53. — Brown hackney, examined 

 9th October, 1914. Small reversed 

 area of hair lying under collar in 

 middle line of under surface of neck, 

 passing vertically upwards three 

 inches long, in central position. 



Fig. 54. — Brown carthorse, examined 

 25th October, 1914. Whorl, feather- 

 ing and crest (W F C) hi middle line 

 of under surface of neck, beginning 

 below where the collar should he in 

 usual position. 



to a different category, and is not to be confused with the patterns 

 in question.) 



In the conditions described there is present exactly that 

 frequent pressure of a moving body against the growing hair, which 

 is requisite to produce changes in its direction, as well as the more 

 fixed pressure of the collar when it is fitting firmly against the 

 lower part of the neck. 



