Treatise on natural philosophy : part 1 / Sir William Thomson and Peter Guthrie Tait. Kelvin, William Thomson, Baron, 1824-1907. Tait, Peter Guthrie 1831-1901, joint author. Mechanics, Analytic. QA805 .K33 1888 501 KET Cambridge : University Press, c1879. c1879. 1879 Text xvi, 508 p. : eng Treatise on natural philosophy. Treatise on natural philosophy.