General view of plantations and cutovers. N.B. age classes and trees left along the stream. Copper Canyon, M&B Vancouver Island.

Douglas fir. Plantations were established in small clearcuts. Copper canyon M&B, Vancouver Island.

Douglas plot with N, P, K and Cu added. c.f. slide 989 and note the difference in growth and colour. Razès.

Dowty forwarder being loaded in the bush. Load = 1.5 cords (2.407 cu. m.) CIP Val d'Or.

Dowty forwarder loading truck. CIP Val d'Or

Dowty forwarder loading truck. CIP Val d'Or

Dowty forwarder loading truck. CIP Val d'Or.

Dr. Al Leaf of SUNY, (Syracuse) describing his study on red pine roots, Pack Forest, Warrensburg

Dr. H. Lowenstein in 25 year old red pine of Heiberg's trial. This is the humus series control plot at Warrensburg.

Dr. Howard Lowenstein in Heinberg's 25 year old red pine in which in 1935 Heiberg dug in 2 inches on humus into the soil before planting.