Part 28 (1/2)

=Alb.u.men.= A name applied to the food store laid up outside the embryo in many seeds; also nitrogenous organic matter found in plants.

=Alburnam.= Sapwood.

=Angiosperms.= Those plants which bear their seeds within a pericarp.

=Annual rings.= The layers of wood which are added annually to the tree.

=Apartment kiln.= A drying arrangement of one or more rooms with openings at each end.

=Arborescent.= A tree in size and habit of growth.

=Baffle plate.= An obstruction to deflect air or other currents.

=b.a.s.t.a.r.d cut.= Tangential cut. Wood of inferior cut.

=Berry.= A fruit whose entire pericarp is succulent.

=Blower kiln.= A drying arrangement in which the air is blown through heating coils into the drying room.

=Box kiln.= A small square heating room with openings in one end only.

=Brittleness.= Aptness to break; not tough; fragility.

=Burrow.= A shelter; insect's hole in the wood.

=Calorie.= Unit of heat; amount of heat which raises the temperature.

=Calyx.= The outer whorl of floral envelopes.

=Capillary.= A tube or vessel extremely fine or minute.

=Case-harden.= A condition in which the pores of the wood are closed and the outer surface dry, while the inner portion is still wet or unseasoned.

=Cavity.= A hollow place; a hollow.

=Cell.= One of the minute, elementary structures comprising the greater part of plant tissue.

=Cellulose.= A primary cell-wall substance.

=Checks.= The small c.h.i.n.ks or cracks caused by the rupture of the wood fibres.

=Cleft.= Opening made by splitting; divided.

=Coa.r.s.e-grained.= Wood is coa.r.s.e-grained when the annual rings are wide or far apart.

=Cohesion.= The union of members of the same floral whorl.