Note 175 — STUDIES IN THE THEORY OF DESCENT

In this sense Lubbock says:—“It is evident that creatures which, like the majority of insects, live during the successive periods of their existence in very different circumstances, may undergo considerable changes in their larval organization in consequence of forces acting on them while in that condition; not, indeed, without affecting, but certainly without affecting to any corresponding extent, their ultimate form.”—“Origin and Metamorphoses of Insects,” London, 1874, p. 39.