concerning plants

One would think that was nearly the first thing to be discovered, or at least to be thought of, concerning plants,—namely, how and of what they are made.

Such were the teachings of all the Greeks and Romans, even of the scientists of the post-Reformation period, some of whom had accumulated a very considerable stock of knowledge concerning plants and animals.

Information concerning plants may be gained by outdoor study; also by planting seeds in boxes and having pupils carefully watch their germination and growth.