Note. Such expressions as by means of, in accordance with, in spite of, etc., are really phrases, but may be regarded as compound prepositions.

Several participles like concerning, considering, pending, are common in a prepositional use and are therefore included in the list ([§ 339]).

For a (a form of on) in abed, asleep, afire, a-fishing, etc., see [§ 352].

Per is confined to the strictly commercial style except in such expressions as perforce, per cent, per annum ([§ 179]).

356. A preposition may stand at the end of a sentence or clause.

Note. This order, though informal, is common in the best authors; but, if carelessly used, it may result in awkwardness of style. Sometimes a relative which is the object of the preposition is omitted (see [§ 151]). Thus, in the second sentence, which might be dropped, and the object of in would then be “which, understood.” For “He was laughed at,” and the like, see [§ 251].

In poetry a preposition sometimes follows its object directly: as,—“Barefoot plod I the cold ground upon” (Shakspere).

357. Certain adverbial expressions like “on Sunday,” “on March first,” occur both with and without the preposition.