[2] Greek gnomon, an interpreter. A pole set up in order to show the length of shadow thrown by the sun.
[3] Greek planetes, a wanderer. This name was originally given to Mercury, Venus, Mars, Jupiter, Saturn, and also to sun and moon, for it indicated all the known heavenly bodies which changed their places among the stars. In modern usage it is not applied to the sun, but only to his satellites, of which many more are now known.
[4] Fractions omitted.
[5] Conv. IV., xxiii. 56, 57.
[6] Dr. C. Hose, in “Travel and Exploration,” for Feb. 1910, quoted in “Nature,” Feb. 17, 1910.
[7] Journal of the British Astronomical Association, June 24, 1909, report of a lecture on Chinese astronomy by E. B. Knobel, F.R.A.S.
[8] Acts, xvii. 28.
[9] The Phainomena of Aratos, done into English verse by Robert Brown, lines 1-13.
[10] Ibid., 373-382.
[11] Ptolemy says he made a few changes, as his predecessors had done. (Delambre, Histoire de l’Astronomie Ancienne, ii. 261).