Three adults in empty school room.

Thomson Timber Company, 1920's. Donor: Thomson Timber.

One faculty member poses with six students for a photo.

This section same as slide #201, but with xNicol; other was in ordinary light.

Thinning in red pine. N.B. fresh-cut stumps painted with NaNO2 + dye to prevent infection by Fomes annosus spores. Wellington Co Forest

White spruce (some black) 35yrs, after thinning. Shebandowan, Thunder Bay

Thin section x200; meta vugh orientated neo cutan, in Bt; n.b. black void & to right of it is microcline particle. from pit slide #172

Thin section x200 to show orientated neo cutans from profile slide #172.

Thin section x200, showing striated neo cutans in Bt of profile slide # 172

Thin section (x200) showing secondary carbonate deposition in the C of slide #140