622 JOURNAL OF FORESTRY 



The average size and development of firsts was the same for each 

 lot. 



It is evident that ^ inch gives much the best results, and sowing, 

 when done in the spring, should be to 3^ inch. 



Douglas Fir 



This experiment has been carried out twice, beds having been sown 

 in the spring of 1913 arid the spring of 1914. 



The 1913 experiment was somewhat complicated by loss in the 

 ^-inch and ^-inch lots, caused by birds. Barring this loss, the total 

 number alive at the end of the season should have been considerably 

 greater than It was. The following conclusions seem warranted : The 

 shallower the sowing the sooner germination starts ; the shallower the 

 sowing the more rapid and complete its germination. 



In Table 5 is given the number and per cent of firsts averaged for 

 two years (1913 and 1914) : 



Table 5.— Average of 1913 and 1914 



Depth of Sowing, Inch Total Number Number of Firsts Per cent 



Ys 47.0 19.8 41.9 



3^ 40.5 16.9 43.8 



y^ 29.6 15.7 53.5 



% 17.3 10.3 55.0 



Average 33.7 15.8 48.5 



It is evident that the total number and number of firsts per foot 

 decrease with increase of depth. Both these figures for ^ inch and %. 

 inch are above the average for all depths ; that the percentage of firsts 

 increases with increased depth. 



The effects of different depths of covering upon the survival of 

 stock (1-1) in the transplant bed may be judged from the following 

 results: In the case of ^-inch cover, 28.7 per cent were alive after 

 one year; ^ inch, 26.8 per cent; ^ inch, 20.3 per cent; 34 inch, 18.9 

 per cent. 



Shallow covering (^ inch and %. inch) in the case of spring sow- 

 ing is better than deep sowing (J/^ inch and ^ inch), because the total 

 number of plants and of firsts per foot of drill is greater, firsts average 

 larger, and loss in transplanting is lower. 



White Fir 



The germination data for white fir warrant the following con- 

 clusions : The shallower the sowing the sooner germination starts ; the 

 shallower the sowing the more complete is germination. 



