Grand opening of road between Nipigon and Port Arthur.
Grand Trunk Pacific Section House, Dona, Ontario (Kaministiquia). Donor: T. Delvecchio.
Grand Trunk Pacific train depot in Dona (Kaministiqua)
Graph on change in fertilizer percentage (weight) over time
Change in mineral fertilizers weight over time
Douglas fir growth (measured through weight change over time) graph.
Graph on fertilizer effects on tree height growth over time
Graph on growth and temperature relation
Relative growth rate percentage over a change in temperature