— Saturn, xiii, 172; xvii, 162; xxv, 191; xxxvii, 373; xliv, 383.
— —, sixth satellite of, xxxiv, 207.
— Venus, P. F. de Vico, xliv, 377, 383.
— —, rotation of, xxiv, 204.
Planets moving in a resisting medium, examination of the theory of, R. W. Haskins, xxxiii, 1.
—, ibid, remarks on, xvii, 389.
—, sizes of, xxxiii, 17.
—, motion of, represented, xii, 103.
—, comparative oblateness of, xxxi, 222.
Planetarium, Russell's, xlii, 400.