View of Ontario's first tree nursery at OAC, Guelph; established in 1904 by Prof. Brown.

Extracted seedlings showing damage to roots by Cylindrocladium spp. cf. slide 562. Disease, red pine, 2+0.

Middle bed did not have roots dipped in slurry, while all other seedlings in other beds did. Transplant, red pine, 2+1.

Poor growth of red pine due to attack by Cylindrocladium spp. Disease, red pine, 2+0.

View of extracted seedlings showing degree of dessication to mortality at A&R's greenhouse. Dessication, black spruce, 1+0.

View of mortality at A&R nursery as a result of dessication. Dessication, black spruce, 1+0.

Hodwitz' workers restocking trays after major losses to dessication.

View of one set with only 70% mortality. Why? See other beds in background. This is at Hodwitz'. Container, jack pine, 1+0.

KAA and Keith McClain at Grundy's private greenhouse. Container, black spruce, 1+0.

View of containers to show why there is poor germination; lack of support so that containers are irregular and this causes gaps and compaction. Containers, black spruce, 1+0.