This present chapter, it may seem, promises something of the same episodical or parenthetic character. But in reality it does not. I am now returning into the main current of my narrative, although I may need to linger for a moment upon a past anecdote. I have mentioned already, that, on inquiring at the Birmingham post office for a letter addressed to myself, I found one directing me to join my sister Mary at Laxton, a seat of Lord Carbery's in Northamptonshire, and giving me to understand, that, during my residence at this place, some fixed resolution would be taken and announced to me in regard to the future disposal of my time, during the two or three years before I should be old enough on the English system for matriculating at Oxford or Cambridge. In the poor countries of Europe, where they cannot afford double sets of scholastic establishments,--having, therefore, no splendid schools, such as are, in fact, peculiar to England,--they are compelled to throw the duties of such schools upon their universities; and consequently you see boys of thirteen and fourteen, or even younger, crowding such institutions, which, in fact, they ruin for all higher functions. But England, whose regal establishments of both classes emancipate her from this dependency, sends her young men to college not until they have ceased to be boys--not earlier, therefore, than eighteen. But when, by what test, by what indication, does manhood commence? Physically by one criterion, legally by another, morally by a third, intellectually by a fourth--and all indefinite. Equator, absolute equator, there is none. Between the two spheres of youth and age, perfect and imperfect manhood, as in all analogous cases, there is no strict line of bisection. The change is a large process, accomplished within a large and corresponding space; having, perhaps, some central or equatorial line, but lying, like that of our earth, between certain tropics, or limits widely separated. This _intertropical_ region may, and generally does, cover a number of years; and, therefore, it is hard to say, even for an assigned case, by any tolerable approximation, at what precise era it would be reasonable to describe the individual as having ceased to be a boy, and as having attained his inauguration as a man. Physically, we know that there is a very large latitude of differences, in the periods of human maturity, not merely between individual and individual, but also between nation and nation; differences so great, that, in some southern regions of Asia, we hear of matrons at the age of twelve. And though, as Mr. Sadler rightly insists, a romance of exaggeration has been built upon the facts, enough remains behind of real marvel to irritate the curiosity of the physiologist as to its efficient, and, perhaps, of the philosopher as to its final cause. Legally and politically, that is, conventionally, the differences are even greater on a comparison of nations and eras.