[35] 'There remained to assign a reason for that increasingly-distinct demarkation of parts, &c.... This reason we discovered to be the segregation, &c.... This cause of the definiteness of local integrations, &c.' F. P., p. 440.
[36] F. P., p. 43.
[37] Essays, vol. iii, p. 47.
[38] F. P., p. 176.
[39] F. P., p. 154.
[40] Proceedings Aristotelian Society, 1912-13, p. 1.
[41] Popular Scientific Lectures, English translation, p. 254.
[42] Lectures and Essays, vol. i, p. 111.
[43] 'But when we ask what this energy is, there is no answer save that it is the noumenal cause implied by the phenomenal effect.' F. P., p. 154. It is towards this and like statements that my criticism is directed. There can be no objection to the treatment, by physicists, of energy as an entity in the sense given below in note 82. Those phenomena to which 1/2 mv2 has reference are fundamental realities for physical science.
[44] In a statement of the law of gravitation we may substitute the words 'in a degree' for 'with a force'; we may speak of 'the measure of attraction' instead of 'the force of attraction'.