FREE INSTITUTE OF SCIENCE 



59 



MENDEL AND HIS LAW 



children. If, however, each of them has one blonde parent, their children will 

 probably be some of them blonde, others brunette, in the proportion of three 

 brunette to one blonde. If a pure blonde and a pure brunette are married, the 

 children will all be brunette, but the grandchildren may be some of them 

 blonde. Two blonde-eyed parents can have only blonde children. It may 

 seem at times as if this law did not quite carry, but when it does not, inspection 

 will usually show that what was thought to be a blonde eye is really flecked 

 with brunette spots or has a brunette edge about the pupil. 



As yet our knowledge of heredity in the human race is too slight to be of 

 much practical importance except to make us wonderfully loath to see any 

 feeble-minded individual produce children. In other fields, however, the 

 chicken fancier, the animal breeder, and the man in search of new types of 

 plants have clear guidance that is bringing immediate practical and valuable 

 results. 



