322 Forestry Quarterly 



ter classes, except for 72" to 80" which has a little over 3.5 per 

 cent, while the class from 62" to 70" has only 2.3 per cent. Over 

 35 per cent of the cedar windfall is between 32" and 40". It 

 is this diameter class that has the greatest amount, 14 per cent, 

 of the wind fill in any one diameter class, although between 92" 

 and 100" there is nearly 13 per cent. There is no windfall in trees 

 72" to 80", nor any in trees from 100" to 120" in diameter. 



In the hemlock type, over 30 per cent by number of standing 

 trees are in the diameter class 12" to 20". From 12" to 30" over 

 52 per cent of the trees by number occur — there is a gradual 

 decrease to 0.6 per cent in 112" to 120", except for the diameter 

 class 102" to 110", where there were no trees tallied for this 

 type. Although nearly 30 per cent by windfall is for trees be- 

 tween 22" and 30", while 32" to 40" has but 25 per cent, the 

 greatest per cent of windfall in any one diameter class is 20 

 per cent and occurs in the class 32" to 40". By volume the great- 

 est per cent for standing cedar, 20 per cent, occurs for diameters 

 52" to 60" ; 27 per cent of volume in trees 92" to 100" is wind- 

 fall, while for 32" to 40" it is over 20 per cent, from which point 

 the per cent decreases until the 82" to 90" class, when it again 

 rises. 



For the whole area taken as a unit, the conditions as to cedar 

 windfall show that in number of trees, 30 per cent is in 12" to 20" 

 and over 80 per cent from 12" to 50". The per cent decreases, 

 except for the slight increase from 72" to 80" over that in 62" 

 to 70", as was found in the cedar type. The greatest per cent, 

 34 per cent, in windfall occurs for trees 32" to 40"; over 80 

 per cent of the windfall by number of trees is from 12" to 40". 

 As only 9 per cent of the cedar on the whole area is windfall, the 

 per cents for the total number of trees, both standing and wind- 

 fall, is practically the same as for the standing timber. By volume, 

 the greatest per cent, approximately 20 per cent, is in 52" to 60" 

 for standing timber, and for windfall is 34 per cent in the class 

 32" to 40". In this class the cedar windfall amounts to 16 per 

 cent, from which point it decreases, being only 1.5 per cent for 

 trees from 72" to 80" in diameter, for trees above this size there 

 is an increase to 20 per cent for trees 92" to 100" in diameter. On 

 the whole area there is no windfall above 100". 



The greatest amount of standing cedar by volume in any 

 class comprises about 20 per cent of the total volume, and occurs 



