Crown closure in mature stand, Algonquin park.

Dense mature stand of hemlock in Algonquin Park.

Eastern hemlock, clearcut in Algonquin Park.

Blake MacDonald's experiment to show the impact of water supply: weekly vs. fortnightly watering on growth of hard maple seedlings.

Blake MacDonald's experiment to show the impact of water supply: weekly vs. fortnightly watering on growth of hard maple seedlings.

Diagram illustrating silvicultural options re: composition, density, productivity, and spacial.

Bending of "whips", i.e. slender understory stems exposed after a selection harvest. Geography Barrie woodlot, Highway 97 near Ayr.

General view of geography in Barrie woodlot. Highway 97 near Ayr. N.B. White pine.

Sports (Individuals): Arthur Ilkka with bowling trophies. Donor: Arthur Ilkka.

Sports (Individuals): Gunnard Wilen crossing ice with dog team at Dog Lake trap line, 1936. Donor: Fanny Wilen.