Start of removal of lateral buds on red pine to produce "knot-free" lower log after several years of continued debudding. nr. Dorset

Scots pine 15 yrs, on blow sand, in open(foreground) under Carolina poplar in backgound. Sand Banks, Prince Edward Co.

Scots pine 25yrs on blow sand at Sand Banks, Prince Edward Co. N.B. exposed roots - a "bonzai" pine.

Scots pine 15 yrs. on blow sand Sand Banks, Prince Edward Co.

Black locust from root sucker of larger tree in background at Sand Banks. N.B. "Bonzai" Scots Pine and exposed roots on the surface.

White pine(87 yrs) showing two fire scars. Sand lake nr. Dorset

Jack pine showing mid-zone of foliage mortality, lower foliage was below snow, and upper was in cold air; middle foliage was subject to heating from reflection off snow/ice surface. Person R.D. Carm.

Needle mortality due to high temp. in late March - a reflection of sun by surface ice/snow crust on needles followed by night freezing temp. Benoit Twp. nr Kirkland Lake

Winter injury to red pine at Kettle Lakes Park near Timmins. N.B. jackpine uninjured in background.

Norway spruce planted in 1945 on an old field. Tall trees in the background on site of cowshed demolished 39 previously. Details in Armson K.A. Tech.Report #1, Fac. Of For. UofT, 1959.