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

Thin section (x200) showing neo-cutan in a channel; white areas are pores.

Thin section x200 showing exfoliated cutan and quartz grain intruded by clay. In Bt profile in slide # 172.

Thin section (x200) showing calcareous nodule in a ferro-argillaceous matrix; black areas are voids