It is easy to see in what manner Prepositions are employed to abridge the process of discourse. They render us the same service which, we have seen, is rendered by adjectives, in affording the means of naming minor classes, taken out of larger, with a great economy of names. Thus, when we say, "a man with a black skin," this compound name, "a man with a black skin;" is the name of a sub-class, taken out of the class man; and when we say, "a black man with a flat nose and woolly hair;" this still more compound name is the name of a minor class, taken out of the sub-class, "men with a black skin." Prepositions always stand before some word of the class called by grammarians nouns substantive. And these nouns substantive they connect with other nouns substantive, with adjectives, or with verbs. We shall consider the use of them, in each of those cases. 1. Substantives are united to Substantives by prepositions, on purpose to mark something added, something taken away, something possessed or owned. Thus, a man with a dog, a horse without a saddle, a man of wealth, a man of pleasure, and so on. It was first shewn by Mr. Horne Tooke, that prepositions, in their origin, are verbs, or nouns. Thus the prepositions in English, which note the modifications effected by adding to, or taking from, were {202} originally concrete words, which, beside something connoted by them, marked particularly _junction_, or _disjunction_. In the use of them as prepositions, that part of their signification, which we have called the connotation, has been dropped; and the notation alone remains. Prepositions, therefore, are a sort of abstract terms, to answer a particular purpose. To express my idea of a man with a dog (a very complex idea, consisting of two clusters; one, that which is marked by the term man; the other, that which is marked by the term dog); it is not enough that I set down the term Man, and the term Dog; it is necessary, besides, that I have a mark for that particular _junction_ of them, which my mind is making. For that mark I use the preposition "with." "Without" denotes disjunction in a similar manner, and requires no further explanation. The preposition "of," by which possession or ownership is denoted, (formerly, as remarked by Mr. Gilchrist, written _og_, _oc_, _ac_, &c.), is _eke_, or add. If we suppose that our verb _have_ is of the same origin, _of_ is merely the verb, which signifies possessing; and the learner may thus conceive the nature of its different applications.[7*] "A man of wealth," a man hav(ing) wealth; "a field of ten acres," a field hav(ing) ten acres; so, "a house of splendour;" "a woman of gallantry;" in all of which cases, beside the two clusters of ideas, marked by the two names which the preposition connects, there is an idea of possession coming between. [*Mill's footnote 7: See note at p. 209.]