200 



MENDELISM 



CHAP. 



at present available deal with ciiaractcrs which are 

 usually classed as abnormal. In some of these the 

 inheritance is clearlv Mendel ian. One of the cases 



Normal and liracliyilactvloiis liamls placed together for comparison. 



(l''roiii nrinUwatcr.) 



which has been most fully worked out is that of a 

 deformity known as brachydactyly. In brachy- 

 dactylous people tlie whole of the body is much 

 stunted, and the fi niters and toes appear to have two 

 joints only instead of three (cf. Fii,^s. 49 and 50). 



