Salt, n. One of the most important substances in the world. It is necessary to the existence of animals and is one of the constituents of many plants.

Sap, n. The juice of plants. It is to them what the blood is to animals.

Saturn, n. In classical mythology, the father of Jupiter.

Scales, n. A.-S. scealu, a scale, husk; in botany, a small, rudimentary leaf, scale-like in form. Scales cover the leaf buds and sometimes the flower buds; they also constitute some bulbs.

Scape, n. L. scapus, shaft, stalk; the long, leafless peduncle which starts from the ground and bears flowers at the top, as in the hyacinth.

Sceptre, n. L. sceptrum, a staff to lean on; a sceptre; a staff of office; the staff of kingship.

Secrete, v. L. secernere, to separate; to form from the materials of the sap or the blood a new substance. The organ that secretes is called a gland.

Secundus, n. L. secundus, second; the name given in this book to a suppositional plant.

Seed, n. The fertilized and matured ovule of a flower.

Seed-coat, n. The outer covering to a seed.