1002 



JOURNAL OF FORESTRY 



seed, indicating its size, were also obtained. The average figures for 

 these tests are : 



Time of shaking, 

 minutes. 



Number 

 of revo- 

 lutions. 



Seed and debris. 



Total 

 weight, 

 grams. 



Weight 

 of 200 

 seed. 



Germina- 

 tion, per 

 cent. 



I 

 4 

 5 



28 



140 



272.87 

 186.93 

 128.90 



2.390 

 2.427 

 2.370 



The number of germinable seed obtained was 1,980 the first shaking, 

 650 the second, and 335 the last time. Though the last amount is small, 

 it seems worth obtaining. 



The fourth test corroborated the results of the other three, but needs 

 no special mention, except to note that the germination per cent was 

 very much higher with the seed later obtained than with those first 

 shaken out. 



The conclusions may be stated as follows : 



1. Seed which does not shake readily from cones is usually of high 

 quality and is worth saving, unless extra shaking is for some reason 

 too expensive. 



2. The seed last shaken out are apparently no smaller than those 

 which are first extracted. 



3. The germination per cent is sometimes, but by no means always, 

 slightly low with the seed last obtained. 



