272 First and Second Toes in Man 



I'he results of the various niatings may be summarised thus 



Toe-Types 



V. Suiiwiary of General Conclusions. 



1. Three toe-types occur, but two are much more common than the 

 other. 



2. The commonest toe-type in England is one in which the first 

 toe is longer than the others. 



3. There is some limitation in regard to sex, the S type occurring 

 more commonly in females than in males. 



4. The S type of toe is commonest in the foetus. 



5. The S or L types are produced by the comparative lengths of the 

 digit, combined with an unknown factor. 



6. The L type of foot is irregularly dominant over the >S* type of 

 foot. 



7. The heterozygous types are usually A and B, but some L types 

 are heterozygous. 



8. The male heterozygote tends to be L, the female heterozygote 

 to be S. 



DESCRIPTION OF PLATES. 



PLATE XIX. 



Photographs of feet of I. male parent, II. female parent, III. female child, IV. male 

 child, outlines (toe-tracings) of which are represented in Figure 2. 



PLATE XX. 



Radiographs of feet of male (I a and I b) and female (II a and II h) parents represented 

 in Plate XIX. 



PLATE XXI. 



Radiographs of feet of female (Ilia and lllh) and male (IV « and IV ft) children, re- 

 presented in Plate XIX. 



