The furrows between his eyes deepened as his brows drew down further.
The chlorophyll-containing tissue reaches the surface at the sides and base of the furrows, I.
The bark, of nearly the same tint as that of the redwood, is extremely thick and is channelled towards the base with vertical furrows; at the root the ridges often stand out in buttress-like projections.
By the unequal development of the secondary cortex the stem becomes twoor three-lobed; the roots, which branch dichotomously, spring from the furrows between the lobes.
Rapidly leaping the furrows, he fled across the field with the impetuosity he used to show at catchplay, now and then turning his good-natured, pale, young face to look back.