Seeds for the Garden 113 
of tomato seed often differ greatly in natural vigor ; 
some are weak, others are strong and vigorous in 
growth (Fig. 65). Squash plants of the same variety 
Richard Wellington 
Fic. 66. Best fruits of different plants of Hubbard squash from commercial 
seed, all grown under the same conditions. The bottom row shows the best 
type of fruit. The upper three rows are especially undesirable because of 
their small size and thin flesh. From which ones would you select seed? 
