Note 950 — Chapter II · DEDUCTION OF THE PURE CONCEPTS OF THE UNDERSTANDING (continued 2)

Though the posthumously published work of Kant’s old age, his Transition from the Metaphysical First Principles of Natural Science to Physics, bears the marks of weakening powers, and is much too incomplete and obscure to allow of any very assured deductions from its teaching, it is none the less significant that it is largely occupied in attempting to define the relation in which the objective world of physical science stands to the sensible world of ordinary consciousness. As above noted (p. 275 n.), it is there asserted in at least twenty-six distinct passages that sensations are due to the action of “the moving forces of matter” upon the sense-organs. What is even more significant is the adoption and frequent occurrence (Altpreussische Monatsschrift (1882), pp. 236, 287, 289, 290, 292, 294, 295-6, 300, 308, 429, 436, 439) of the phrase “Erscheinung von der Erscheinung.” Kant would seem to mean by “Erscheinung vom ersten Range” (op. cit. p. 436) (i.e. appearance as such), the objective world as determined by physical science; and by “Erscheinung vom zweiten Range” (i.e. appearance of the appearance), this same objective world as known in terms of the sensations which material bodies generate by acting on the sense-organs. Kant adds that the former is known directly, and the latter indirectly—meaning, apparently, that the former is known through a priori forms native to the understanding, and the latter only in terms of sense-data which are mechanically conditioned (cf. loc. cit. pp. 286, 292, and 444 n. The terms latter and former on p. 300 have got transposed).