22 
Leo A. Isaac, silviculturist of the Pacific Northwest Forest and Range 
Experiment Station, Portland, Oregon, examining graft of scion material 
from Granite Falls, Washington, made by Professor Jack Duffield, College 
of Forestry, University of Washington, at Research Acres, Manning Seed 
Company Tree Seed Orchard near Eatonville, Washington. Left to right: 
Isaac, Frank Manning, Jack Cameron, Manning Seed Company Chief 
Forester, Bill Manning and Duffield. 
