YIELD OF ASSOCIATED SPECIES gI 
acres measured, if no reduction is made for unsound 
trees. The percentage which should be allowed for 
cull in hardwoods has been variously estimated by dif- 
ferent lumbermen in the Adirondacks at from five to 
forty per cent. Probably about thirty per cent. of the 
Hemlock lumber will be found to be unfit for market. 
For the allowance actually made for cull in the various 
species see the estimates in the working plan on p. 114. 
