s a consequence drawn from something already advanced or demonstrated. Thus, it being demonstrated that a triangle which has two equal sides, has also two angles equal, it follows that a triangle which has three sides equal, has also its three angles equal.

COROLISTÆ, a name by which Linnæus distinguishes those systematic botanists who have arranged vegetables according to the regularity, figure, number, and other circumstances, of the petals, or beautifully-coloured leaves of the flowers. The best systems of this kind are those of Rivinus and Tournefort. The former proceeds upon the regularity and number of the petals, the latter on their regularity and figure.