26 



several hundred apparently distinct types (200 of wheat and about 1,200 of 

 vetches and pease) were sorted out, described and numbered. In many cases 

 each of these types or groups was made up of many individuals. In a number 

 of cases, however, certain forms were found which had no duplicates. Each 





' 



Photo by courtesy S. S. Ass'n. 

 FIG. IV. Svalof's Selected (Renodlad) Squarehead Wheat. (Mass-Selected Sort.) 



of such forms was therefore required to represent a group in itself. Each 

 group was now allotted a separate plot, careful records being kept of the 

 character and number of individual heads or plants as the case might be, 

 which comprised the progenitors of each culture. 



