NEWTONIANISM -- POINCARE, Jules Henri (1854-1912). Théorie du Potentiel Newtonien, Paris: Georges Carré et C. Naud, 1899, 8°, diagrams (library markings, including title perforation), contemporary half morocco (worn) -- C. NEUMANN. Allgemeine Untersuchungen über das newton'sche Princip der Fernwirkungen, Leipzig: B.G. Teubner, 1896, 8°, contemporary half morocco, preserving original wrappers (upper cover detached) -- Isaac NEWTON. Mathematische Principien der Naturlehre, translated by Jacob Philipp Wolfers, Berlin: Robert Oppenheim, 1872, 8°, diagram, contemporary green mottled boards (rebacked). [Wallis 136, ... & 39] Provenance: I. II. & III: JCL (3)