In a paper of pencilled notes pinned into Darwin's copy of the "Vestiges" occur the words: "Never use the word (sic) higher and lower."), for I do not think that any one has a definite idea what is meant by higher, except in classes which can loosely be compared with man.

On our theory of Natural Selection, if the organisms of any area belonging to the Eocene or Secondary periods were put into competition with those now existing in the same area (or probably in any part of the world) they (i.e.the old ones) would be beaten hollow and be exterminated; if the theory be true, this must be so.

In the same manner, I believe, a greater number of the productions of Asia, the largest territory in the world, would beat those of Australia, than conversely.

So it seems to be between Europe and North America, for I can hardly believe in the difference of the stream of commerce causing so great a difference in the proportions of immigrants.

But this sort of highness (I wish I could invent some expression, and must try to do so) is different from highness in the common acceptation of the word.