[215] Cf. above, pp. 39 ff., 53; below, pp. 57-8, 222 ff., 241, 286-9.

[216] B 2-3.

[217] Cf. above, p. 53.

[218] A 9-10 = B 13.

[219] Cf. above, p. 39 ff., and below, pp. 286-9.

[220] P. 53; cf. also pp. 1-2.

[221] Cf. also above, pp. 2-3.

[222] B 3.

[223] Cf. Metaphysische Anfangsgründe, Hauptstück ii. Lehrs. 8, Zus. 2, in which elasticity and gravity are spoken of as the only universal properties of matter which can be apprehended a priori.

[224] B 3-4.