Gray-wooded luvisol in Truax Township, Plonski Forest near Swastika; in silty clay; n.b. Ah

Ablation (dump) till of loamy sand over a basal till of sandy loam, which is compacted; n.b. roots mainly in the upper loose dump till.

View of Forestry Soils class, Sept. 1970. II yr students in their field work at Dunlap Observatory.

Surface view of Ah (mull) in gray-brown luvisol at Dunlap Observatory, Richmond Hill; cf. slides # 223 & 226.

Root system of Acer saccharum (sugar maple) in sandy loam till; dystric brunisol (despite Ae!); tree approx. 85yrs old; n.b. "tight" root system.

Extracted portion of C to show laminations in silt loam, roots and gleying; this is from profile in slide # 228

Platy structure in silt loam in Bm merging into C; close-up of soil profile in slide # 228

Showing L, H, Bm horizons of profile in slide # 228, in Burt Twp. Plonski Forest, near Swastika.

Profile of a eutric brunisol in lacustrine silt loam with Ck; in Burt Twp. Plonski Forest, near Swastika.

Windthrow in a till (sandy loam) at Dorset under white pine; n.b. inversion of horizon; windthrow was after forest fire; intensity of heat in burning root shown by firing at right. Monolith at U.T.