Selection system in Couvet Forest, Switzerland. Photo R.J. Day

Self-pruning in white ash, 5 years. Planted in 5ft by 6ft spacing. Carlson Tract.

Selfing test in Quercus robur

Semimature needle blight in white pine. Parry Sound, Georgian Bay.

September temperature of -12C(10F) causing frost damage on apical growth. Black spruce, 1+0, frost damage.

Sequence across strips from most recent to the last residual in the background. Joan Peninsula, Temagami

Setting the fire with a torch. Nr. Dorset, Cf #58 & 59.

Setting the fire with a torch. Near Dorset, Cf #58 & 59.

Shade house for BC styroblock stock taken from greenhouse in spring. Container, shade house.

Shaded seedbeds down in late spring n.b. poor growth.