550 INDEX 



Working plans, applicable to the United Yield, allotting the, 254 



States, 219 by volume, 63 



difference between State and com- determination of, 253 



munal forest, 243, 244 relative, of timber and fuel, 93 



Government regulation, 206 regulation, Gurnaud method of, 241 



mensuration in, 206 Yields by windfall, 80 

 Schaeffer's simple rule, 244, 245 



theoretical need of, 219 Zones, mountains, 31 



