80 THE SENSE OF TOUCH IN ANIMALS 



(1) H.K. male, eight and three-quarter years. 



Rigid Hand. 



Distal imbrication found on terminal phalanges of all digits, and 



two middle phalanges. 

 Palmar surface. — Distal imbrication on two of eminences at bases of 

 digits and on thenar and hypothenar eminences. 

 Left Foot. 



Digits. — Imbrication proximal on terminal phalanx of two digits. 

 Ball of great toe, imbrication proximal ; fibular border of sole over 

 a joint, imbrication proximal ; heel, imbrication proximal. 



(2) E.K., male, nineteen years. 



Right Foot. 



Digits. — Imbrication proximal on terminal phalanx of D. 1 ; imbri- 

 cation distal on terminal phalanx of D. 1. 



Plantar surface. — Ball of great toe, proximal imbrication ; outer 

 border of sole, proximal imbrication over two joints ; heel, outer 

 border, imbrication proximal. 

 Left Foot. 



Digits. — D. 1,2, 3,4, 5, imbrication proximal and faintly marked. 



Plantar surface. — Ball of great toe, imbrication distal. The rest of 

 the plantar surface showed no imbrication. 



(3) W.K., male, fifty-two. 

 Left Hand. 



Digits. — All the five digits show distal imbrication on all the pha- 

 langes. 

 Right Hand. 



Digits. — D. 1, distal imbrication on both phalanges ; D. 2, distal 

 imbrication on all three phalanges ; D. 3, distal imbrication on 

 two phalanges ; D. 4, distal imbrication on two phalanges, 

 proximal imbrication on one phalanx ; D. 5, distal imbrication 

 on two phalanges. 

 Left Hand. 



Palmar surface. — Imbrication distal on the three small eminences 

 at the bases of D. 2, 3, 4. 

 Right Hand. 



Palmar surface. — Imbrication distal on four small eminences at 

 the bases of D. 2, 3, 4, 5. 



In these three carefully observed cases there are shown on 

 the one hand, the variabihty of this phenomenon of imbrication 

 of papillary ridges in man, and on the other, its constancy in 

 certain regions of both the foot and hand. We have thus : 



Case I. — Hand and foot of the same subject examined, distal imbri- 

 cation being the feature of the former and proximal of the latter. 



