VITALITY OF SEEDS 



continues active for five years, on an average, 

 do not entirely lose it after the lapse of ten years, 

 or more. In this class are included most of the 

 seeds sown in the market garden those which 

 possess a less degree of vitality are corn, dande- 

 lion, leek, onion, okra, peas, parsnip, parsley, rad- 

 ish, salsify and spinach. 



LENGTH OF TIME FOR WHICH DIFFER- 

 ENT SEEDS RETAIN THEIR VITALITY 



The general rule above suggested, giving prefer- 

 ence to last year's seed, has some exceptions. 



[73] 



