Books by J. R. Hansbrough
The significance of the discol
The significance of the discolorations in aircraft lumber
The significance of the discol
The significance of the discolorations in aircraft veneers
The significance of the discol
The significance of the discoloraiton in aircraft veneers
The T̲y̲m̲p̲a̲n̲i̲s̲ canker of
The T̲y̲m̲p̲a̲n̲i̲s̲ canker of red pine
A new canker disease of red pi
A new canker disease of red pine, caused by tympanis pinastri
The dying of beech in 1934
The dying of beech in 1934
Survival of blister-rust mycel
Survival of blister-rust mycelium in western white pine