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Engelmann spruce in Manning Provincial Park. Ht. 45m.

Endocronartium harknessii sporulating (aeciospores) on jack pine. Engelhart Management Unit

Endocronartium harknessii sporulating (aeciospores) on jack pine Engelhart Management Unit

Researchers gathering data

Field experiment on fertilizers effects on tree growth

Field experiment on fertilizers effects on tree growth

A field experiment on tree growth

Insect damage on pine tree needles

Employer Panel Presentation, Agora, May 15 1975, 9. 34.

Genealogy: Emmi and Jalmer Ojala's wedding, Nolalu.