which will yet no doubt be susceptible of much improvement and perfecting: –
I. Pure a priori Sciences.
1. The doctrine of the ground of being.
(a.) In space: Geometry.
(b.) In time: Arithmetic and Algebra.
2. The doctrine of the ground of knowing : Logic.
II. Empirical or a posteriori Sciences. All based upon the ground of becoming, i.e., the law of causalty, and upon the three modes of that law.
1. The doctrine of causes.
(a.) Universal: Mechanics, Hydrodynamics, Physics, Chemistry.
(b.) Particular: Astronomy, Mineralogy, Geology, Technology, Pharmacy.
2. The doctrine of stimuli.
(a.) Universal: Physiology of plants and animals, together with the ancillary science, Anatomy.
(b.) Particular: Botany, Zoology, Zootomy, Comparative Physiology, Pathology, Therapeutics.
3. The doctrine of motives.
(a.) Universal: Ethics, Psychology.
(b.) Particular: Jurisprudence, History.
Philosophy or Metaphysics, as the doctrine of consciousness and its contents in general, or of the whole of experience as such, does not appear in the list, because it does not at once pursue the investigation which the principle of sufficient reason prescribes, but first has this principle itself as its object. It is to be regarded as the thorough bass of all sciences, but belongs to a higher class than they do, and is almost as much related to art as to science. As in music every particular period must correspond to the tonality to which thorough bass has advanced, so every
