Graph showing relationship between growth and Nitrogen content in plantation trees over rotation; data of Switzer, Smith & Nelson.

Comparison of shortwood and whole tree harvesting as perceived in the late 1960's.

Grapple loader. "in the maw of the logger". Pitt River, Jones Ops.

Grapple skidder, GLP (now Avenor).

Grapple yarder, Renfrew Div., B.C. Forest Products. Person on left is Vince Kerrio, Ontario Minister of Natural Resources.

Gravel and medium sand- discontinuity- Forbes Cr.

Same profile as slide # 222, but from different angle; gray-brown luvisol

Gray-Brown Podzolic in clay; N.B. drainage impeded and some gleying but not very visible. Photo Can. Dep. Agric. Alfisol, P, C, D.

Gray-Brown Podzolic in sandy loam; N.B. greater intensity of colour than if in clay loam. Photo Can.Dep. Agric. Alfisol, P, C, D.

Gray-Brown Podzolic in Till; N.B. nut structure of B horizon. Photo Can. Dep. Agric Alfisol, P, S, D.