For convenience in describing they should be able to name and distinguish petals, sepals, and so on; and they should be encouraged to make such rough classifications as they can with their slight knowledge of both animal and vegetable forms. Plants with heart-shaped or spoon-shaped leaves, with whole or divided leaves; leaves with criss-cross veins and leaves with straight veins; bell-shaped flowers and cross-shaped flowers; flowers with three petals, with four, with five; trees which keep their leaves all the year, and trees which lose them in the autumn; creatures with a backbone and creatures without; creatures that eat grass and creatures that eat flesh, and so. To make collections of leaves and flowers, pressed and mounted, and arranged according to their form, affords much pleasure, and, what is better, valuable training in the noticing of differences and resemblances. Patterns for this sort of classification of leaves and flowers will be found in every little book of elementary botany.
The power to classify, discriminate, distinguish between things that differ, is amongst the highest faculties of the human intellect, and no opportunity to cultivate it should be let slip; but a classification got out of books, that the child does not make for himself and is not able to verify for himself, cultivates no power but that of verbal memory, and a phrase or two of ‘Tamil’ or other unknown tongue, learnt off, would serve that purpose just as well.