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GRACE P. HAYS 



to represent the four normally found. This distal phalanx 

 articulates with medial phalanges 2-3 and 4-5. 



Right Jore foot. In the bones of this foot (fig. 8) the condition 

 is so closely symmetrical to that described for the left that only 

 the variations need be noted. The epiphysis of metacarpal 2 

 is distinct instead of being fused with the epiphysis of meta- 

 carpal 3. The epiphysis of metacarpal 3 is fused with the bone 

 representing proximal phalanges 2 and 3. The proximal epi- 

 physis of metacarpal 4 is distinct. There are apparent dis- 



dSS 





Fig. 7 Diagram of the bones of the left fore foot of the abnormal cat. 

 Fig. 8 Diagram of the bones of the right fore foot of the abnormal cat. 



crepancies between the skiograph and the diagram in the rel- 

 ative dimensions of some of the bones of this foot. This is due 

 to the fact that the foot was placed under the X-ray in a plane 

 not parallel to that of the photographic plate. 



Left hind foot. The bones of digit 2 and the rudimentary bone 

 representing the degenerate first digit are normal (fig. 9). The 

 other digits are modified as follows. The diaphyses of metatar- 

 sals 3 and 4 have partially fused at the distal end. Their two 

 epiphyses have fused. A single proximal and a single medial 

 phalanx represent the proximal and medial phalanges of digits 

 3 and 4. Metatarsal 5 shows a distinct diaphysis and distal 



