Nursery Centgener Breeding of Wheat. 69 



years with very little modification, having proved adapt- 

 ed to' nearly all new conditions which are constantly 

 coming up in the work of making varieties and in the 

 theoretical work of studying problems of heredity and 

 breeding in plants. Some of the methods used in these 

 records are proving satisfactory in keeping the records 

 of animal breeding also. 



