EXPERIMENT STATION. 101 



Lettuce Seed, 



The vitality of 28 samples of lettuce seed, representing 23 

 alleged " varieties," received from wholesale dealers, and stated 

 by them to be fresh seed, winnowed and ready for market, was, 

 on the average, 98.3 per cent. The maximum vitality was 100 

 per cent. ; the minimum 93 per cent. Since there was so little 

 difference in the vitality of the samples, the results of the tests 

 are not here given in detail. The varieties were the following : 

 Boston Curled, Extra Boston Curled, Early Boston Curled, Bos- 

 ton Market, Curled Simpson, black seed; Curled Simpson, white 

 seed ; Extra Curled Simpson, Early Simpson, Butter Salad, black 

 seed ; Butter Salad, white seed ; Butter Salad, yellow seed ; Ten- 

 nis Ball, white seed ; Early Tennis Ball, Hanson's, Large India, 

 All the Year Round, Drum Head, Cabbage, or Malta Drum 

 Head; White Paris, Frankfort Head, Early Curled Silesia, 

 Ferry's Prize Head, Green Fringed, Philadelphia Butter. 



The weight of 1000 seeds of the samples above referred to was 

 on the average 1.28 grams. The maximum weight, 1.56 grams; 

 the minimum, 1,00. Most of the samples were California grown. 



Four samples of Early Boston Curled and two of White Paris 

 are not included in the averages for this reason. The White 

 Paris seed averaged .717 grams per 1000, and the four samples 

 of Boston Curled .808 grams per 1000. These weights it will be 

 seen are very much lower than the minimum of all the other 28 

 samples. 



