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Roundwood harvest timber volumes, Ontario 1867-1982

Canada Centennial Year Mass Movement for men, women and children

Areas of prescribed burns. Ontario, 1960-1982

Areas site prepared, planted & seeded, tended. Ontario, 1960-1982

Areas site prepared, planted & seeded, tended. Ontario 1960-1982

Areas planted and seeded, Ontario, 1960-1982

Roundwood harvest timber volumes, Ontario 1867-1982

The first manual for using Infrared colour photography in the assessment of regeneration. 1982. Ontario Ministry of Natural Resources.

First aerial spray manual 1982. Ontario Ministry of Natural Resources

Normal yield tables for Ontario by W.L. Plonski, 1960. These tables were needed when the province adopted 'plotless' cruising using the Bitterlich wedge prism for its inventory