43 



when I didn't yet know how quickly the seed must germinate in 

 order to be good, I had a few bad results. Here are two results 

 with American seed; 



190910 10 days 83, 20 days 91 % 



189091 10 0, 20 3 % 



Danish seed varies greatly, sometimes being good, sometimes poor. 



190001 10 days 80, 20 days 85 % 



191112 10 19, 20 32 % 



THUYA OCCIDENTALIS. Behaves like the last mentioned species: 



Germination in per cent after 5 10 20 days 



Canadian seed 190910 75 90 



191112 34 92 



American seed 1910 11 69 85 



190203 24 41 



Italian 189394 42 



188990 



Danish 190001 46 78 



Norwegian 190910 77 96 



Among the TSUGAS, TSUGA CANADENSIS, in spite of the 

 smallness and lightness of the seeds, is markedly slow in germina- 

 ting. I am not yet clear if the seed is really so slow in germina- 

 ting, or whether it is mostly of bad quality. The best result I have 

 obtained was in the year 1910 11 and was as follows: 30 days 

 %, 40 days 20 / , 60 days 43 %, 100 days 49 /o; most of the other 

 tests have had a much worse result. 



WESTERN HEMLOCK TSUGA MERTENSIANA. In the case 

 of this handsome and valuable species germination proceeds much 

 better, and the seed does not lose its germinating capacity so very 

 quickly. 



Germination in per cent after 10 20 30 40 days 



190809 3 33 68 



190910 2 20 49 



Same lot, 1 year later 10 30 



191011 10 24 39 



Same lot, 1 year later 009 12 



191112 20 46 55 (+4) 



