qu'on; que hère replaces si

Page 15. — r. de telle sorte que, in such a ivay that, so that. This phrase is followed by the subjunctive when it dénotes purpose.

2. il en résulte . . . des variations, there resuit . . . variations; il is the grammatical, and des variations the logical, subject; en, literally "from it," is expletive.

Page 1G. — 1. il ne faudrait pas, we must not (or should not). The conditional is less absolute that the présent tense would be (compare next sentence), and suggests that the statement is made with a certain reserve; cf. page 6, note 2.