at certain places and times, as may best suit the convenience of such, who may be most particularly concerned in them.”—­Barclay’s Works, Vol. i, p. 495.  “Which, no doubt, will be found obligatory upon all such, who have a sense and feeling of the mind of the Spirit.”—­Ib., i, p. 578.  “Condemning or removing such things, which in themselves are evil.”—­Ib., i, p. 511.  In these citations, not only are who and which improperly used for as, but the commas before them are also improper, because the relatives are intended to be taken in a restrictive sense.  “If there be such that walk disorderly now.”—­Ib., i, p. 488.  Here that ought to be as; or else such ought to be persons, or those. “When such virtues, as which still accompany the truth, are necessarily supposed to be wanting.”—­Ib., i, p. 502.  Here which, and the comma before as, should both be expunged.  “I shall raise in their minds the same course of thought as has taken possession of my own.”—­Duncan’s Logic, p. 61.  “The pronoun must be in the same case as the antecedent would be in, if substituted for it.”—­Murray’s Gram., p. 181.  “The verb must therefore have the same construction as it has in the following sentence.”—­Murray’s Key, p. 190.  Here as is exactly equivalent to the relative that, and either may be used with equal propriety.  We cannot avoid the conclusion, therefore, that, as the latter word is sometimes a conjunction and sometimes a pronoun, so is the former.

OBS. 23.—­The relatives that and as have this peculiarity; that, unlike whom and which, they never follow the word on which their case depends; nor indeed can any simple relative be so placed, except it be governed by a preposition or an infinitive.  Thus, it is said, (John, xiii, 29th,) “Buy those things that we have need of;” so we may say, “Buy such things as we have need of.”  But we cannot say, “Buy those things of that we have need;” or, “Buy such things of as we have need.”  Though we may say, “Buy those things of which we have need,” as well as, “Buy those things which we have need of;” or, “Admit those persons of whom we have need,” as well as, “Admit those persons whom we have need of.” By this it appears that that and as have a closer connexion with their antecedents than the other relatives require:  a circumstance worthy to have been better remembered by some critics.  “Again, that and as are used rather differently.  When that is used, the verb must be repeated; as, ’Participles require the same government, that their verbs require.’—­’James showed the same credulity, that his minister showed.’  But when as is used,