MENDEL'S LAW 



21 



the four following combinations bearing the characters 

 written down below : 



Vw 

 Ls 



Violet-red 



with long 



stems 



Vw 



s s 



Violet-red 



with short 



stems 



WW 



Ls 



White 



with long 



stems 



WW 

 S S 



White 



with short 



stems 



The actual results obtained were 



47 



38 



40 



41 



Thus Mendel's theory, which may be proved " theo- 

 retically," was proved by actual experiment, and so 

 became a law. 



