Midge damage in black spruce. Limestone Lake

Middle bed did not have roots dipped in slurry, while all other seedlings in other beds did. Transplant, red pine, 2+1.

Programme for the Mid-Canada Development Corridor Conference held at Lakehead University, August 18-22, 1969.

Text for what appears to be a planned brochure or document describing the upcoming Mid-Canada Development Corridor Conference.

Objects of Conference, and a summary document for the Mid-Canada Development Corridor Conference to be held August 1969.

A short description of the upcoming Mid-Canada Development Corridor Conference.

Microtus hole in the Ah of the profile at the Dunlap Observatory, Richmond Hill; cf. slides # 140, 162

Microsection of the cortical cells of an Alnus nodule to show the vesicles (stained red) within the cell which are thought to be the site of Nitrogen fixation

Microsection of Alnus nodule to show the infected cortical cells; n.b. the mycelia of the actinomycete which terminate in the vesicles. cf. slides # 213-217