1909.] PUBLIC DOCUMENT — No. 31. 167 



VARIATION IN PEAS. 



F. A. WAUGH AND J. K. SHAW. 



A preliminary report of these studies in variation of peas 

 was made last year.^ Since that time the experiments have been 

 continued and many interesting data secured. The work was 

 done largely by Mr. C. S. Pomeroy. 



Primarily these experiments were designed to give some 

 accurate knowledge of variation in a common variety of garden 



V\nz. LE-NOTri 



• - i I90T 



FIG. 1. 



peas, Nott's Excelsior. Hitherto our knowledge of such matters 

 has been too meager and inexact to have any scientific value or 

 to supply a proper basis for progress in practical plant breeding. 

 As the work has gone on other problems have come up, including 



« Massachusetts Agricultural Experiment Station, Report 20; p. 65 (1908). 



