Columbia subject headings:
Harvard subject headings:
Fries, Jakob Friedrich, 1773-1843--Criticism and interpretation.
Kant, Immanuel, 1724-1804--Criticism and interpretation.
Newton, Isaac, 1642-1727--Criticism and interpretation.
Space and time.
Princeton subject headings:
Fries, Jakob Friedrich, 1773-1843--Criticism and interpretation.
Gravitation.
Kant, Immanuel, 1724-1804--Criticism and interpretation.
Mechanics.
Metaphysics.
Newton, Isaac, 1642-1727--Criticism and interpretation.
Space.