—, on central forces, xix, 46; xx, 65. 291; xxi, 66, 334; xxii, 132, 342.
—, motion of a system of bodies, xxiv, 40; xxv, 281; xxvi, 44.
—, on the parallelogram of forces, xxvi, 304; xxix, 345.
—, composition and resolution of forces and statical equilibrium, xxviii, 85.
—, theory of the variations of the arbitrary constants in elliptic motion, xxx, 248.
—, integration of one kind of differential equations of the second order, xlii, 273.
—, on the principles of virtual velocities, xlii, 66; xliii, 77.f
—, on the first principles of the differential calculus, together with a new investigation of Taylor's theorem, xlv, 269.
—, new way of obtaining exponential and logarithmic theorems, xlviii, 36.
Strontia distinguished from baryta by means of chromate of potash, J. L. Smith, xxxvi, 183.