TABLE 1. 



SHOWING RESULTS OF SEED SEPARATION BY THE WATER METHOD. 



v^„,„„f-_,j No. seed germinated. Per cent of increase in germin - 



Aameoiseea. Ught. Heavy. ation of light over iieavy seed. 



Lettuce, 68 90 32. 



Onion, 100 117 17. 



Onion, 38 85 142. 



Lettuce, 44 88 100. 



Onion, 50 58 . 17. 



Average, 60 87 61. 



TABLE IL 



SHOWING RESULTS OF SEED SEPARATION BY THE WATER METHOD ON 



GERMINATION AND GROWTH OF SEEDLINGS OF ONIONS. 



TOTAL OF 400 SEEDS USED. 



Per cent of No. of Wt. of plants. Ave. per cent gain 



germination. plants. (Grams.) of heavy over light. 



Total. Average. 



Heavy (sank), 42.5 85 18. i .213 37-42 



Light (floated), 19.5 38 5.9 .155 



TABLE in. 



SHOWING THE RESULTS OF SIFTING lO GRAMS OF LETTUCE SEED. 



Size of seed. Weight in 10 grams of seed. Per cent. 



2.0 — 1.5 mm. 1-015 grams. io-i5 



1.5 — i.o mm. 6.689 grams. . 66.88 



i.o — .5 mm. 1.800 grams. 18.00 



.5 0.491 grams. 4.91 



