Note 100 — XII.
Reading edition
"We may assert of the individual, as well as of the species, that it completes the cycle of its existence in a succession of subordinate generations; while, on the other hand, we may affirm of the species, that, like the individual, it exhibits a determinate cycle of development." "The species itself may be regarded as an inferior 'momentum' of a still more comprehensive cycle of development."—Dr. A. Braun, "On the Vegetable Individual."
"The species is an individual of a higher rank."—Link: Elements of Botanical Science, vi. 11.
"Species, like individuals, have a certain limited term of existence. It is the fact, that, according to some general law, species of animals are introduced, last for a limited period, and are then succeeded by others performing the same office."—Ansted's Ancient World, 52, 54.