Foliage age classes and needle fall. white pine, Parry Sound

Adelges spp. on black spruce

Root system of black spruce planted 1962, 2m. height. Photo June 1971 Sanford Mutrie, Dryden Paper Co.

Cuttings from selected black spruce in plantations at Camp 16 Black Brook, rooted and outplanted at Juniper Nursery. Slide #800c is of CIF members. Juniper, J.D.Irving

Clone J4 in the background, trembling aspen in the foreground at 3 yrs. Golden Acres, Brockville

Clonal variation in radiata pine (California)

Map of climatic regions

Photograph of a map of climatic regions of Northern Ontario

Sepia-toned photograph of the steamer, Clifford Sifton in ice on the Yukon River. The steamer is filled with passengers posing for the photograph on the upper and lower decks. The steamer is in the ice. Caption on image: "In the ice below Dawson".…

Lifestyle: Clearing the land with horses. Donor: Helen Laine.