[L] From a Latin word, signifying "compressed into a small compass."
[M] All pupæ cannot be thus hastened or retarded by influence of external heat or cold. The pupæ of a moth, very common in our fields, if all exposed to the same temperature will some of them develop this year, some the next, and some the year following. This singular fact cannot be explained.
[N] This scene is depicted in the Frontispiece to the last Part.
[O] Now-a-days the chemist might also answer, Gutta Percha; for it is a singular fact that strong acids have no action upon that curious substance.
[P] That is, the twelfth part of an inch.
[Q] This scene is represented in the Frontispiece to Part III.
[R] See page 241.
[S] See p. 316.
[T] Several other explanations of red-rain are given, which account for it by the presence of animalcules, fungi, &c.
[U] Vide the admirable Address of W. Spence, Esq. F.R.S. President of the Entomological Society for 1849; p. 5.