Nam Sophia ars illa eft, quæ fallere fuaviter horas PSEUDON: apud PITCAIRN. EDINBURGH: SOLD BY T. CADELL, LONDON, MDCCXCII. 1 Further inftances of the truth of the three Canons, in Mechanical Philofophy, and in Chemistry: and of striking analogy to them in Vegetation, and in Senfation, and Belief; in which occurrences or operations, though there be a different relation between the event obferved and the principle of Change, and in fome of them a different principle of Change from what there is in cafes of Caufe and Effect in inanimate matter; yet there is either no optional or difcretionary power, or but very little of it, in the subject, with respect to the Change that takes place. LL the general inferences expreffed by A1 the preceding formule X = A, X+Y =A+B, X— Y = A — B, XY A B, are found experimentally true as matters of fact in numberless inftances of cause and effect in phyfics. We know not of any exception to them in physical science; and have therefore every reason which the nature of the thing admits of B b to |