Note 70 — Chapter II
Reading edition
The law of definite proportions, which, since the brilliant discoveries by Dalton, is the corner-stone of chemical knowledge, is laid down with admirable clearness in Turner's Elements of Chemistry, vol. i. pp. 146–151. Compare Brande's Chemistry, vol. i. pp. 139–144; Cuvier, Progrès des Sciences, vol. ii. p. 255; Somerville's Connexion of the Sciences, pp. 120, 121. But none of these writers have considered the law so philosophically as M. A. Comte, Philosophie Positive, vol. iii. pp. 133–176, one of the best chapters in his very profound, but ill-understood work.