Investigations, Washington, D.C., 1912, p.

35.] Tension at right angles to the grain is closely related to cleavability.

When wood fails in this manner the thin fibre walls are torn in two lengthwise while the thick-walled fibres are usually pulled apart along the primary wall.
|--------------------------------------------| | TABLE III | |--------------------------------------------| | TENSILE STRENGTH AT RIGHT ANGLES TO THE | | GRAIN OF SMALL CLEAR PIECES OF 25 WOODS IN | | GREEN CONDITION | | (Forest Service Cir.

213) | |--------------------------------------------| | | When | When | | COMMON NAME | surface of | surface of | | OF SPECIES | failure is | failure is | | | radial | tangential | |------------------+------------+------------| | | Lbs.

per | Lbs.