NOTES AND COMMENTS 359 



vide tentatively in timber sale plans for the removal of the windthrow 

 timber at the end of four or five years. Also, as the present knowledge 

 of windfall is enlarged, it may be found that excessive windthrow is 

 confined to certain areas. In such a case, a special adaptation of the 

 cutting method might be practiced — a method in which only the small- 

 est trees and young bull pines are reserved. 



In the case of reproduction, the most valuable finding from a prac- 

 itcal standpoint is that advance is, as a rule, more abundant after cut- 

 ing than subsequent, and that it increases its growth and vigor, and 

 even the poorest of it recovers from suppression. Advance should, 

 therefore, be protected with the greatest care in logging, and particu- 

 larly in brush burning. Because of the increase in height growth and 

 in vigor stimulated by liberation, advance reproduction should be 

 favored as much as possible in marking. 



The conclusions with regard to fire find their chief application in 

 connection with slash disposal. They indicate that reproduction is 

 very easily killed by fire running in the grass, as well as fire running in 

 slash. They show that the heat, as well as the flames, from intensely 

 burning brush piles kills the reproduction within a considerable radius 

 surrounding the pile, and also kills the lower parts of the crowns of 

 small bull pines close to the pile. Forest officers should bear in mind 

 the terrible destructive effect of heat (not flames) in killing the needles 

 and the cambium of both the smaller branches of trees and the stems of 

 seedlings. 



Two important pieces of legislation were passed by Congress on 

 March 4, namely, an increase of $300,000 in the appropriation for the 

 investigation and eradication of the white pine blister disease, and 

 amending the Federal Horticultural Act to enable the Federal Horti- 

 cultural Board to declare effective quarantine in tree and plant disease 

 by districts, States, or sections of the country. The existing law was 

 ineff'ective, inasmuch as it permitted a quarantine only where there is 

 danger of infection. 



Advance information by the Forest Service makes the probable 

 lumber cut for 1916 around 11 per cent above that for 1915, or over 

 42 billion feet; that is, within 3^ billion feet of the record year 1907. 



