Mounting tree seedlings for measurements

Experimental effects of gases on tree growth

Measurements by researcher

Tree seedling measurements by researcher

Measurement by researcher

Mounting tree seedling for root and length measurement (Caledon UF 400)

Old field planting of jack pine with "FinnForester" (cf slide #567) Buctouche, J.D.Irving

Potti putki used to plant paper pot container stock. Black Brook, J.D.Irving.

Tree planters in summer planting of black spruce. N.B.excessive slash Thunder Bay