[1077] (1740), p. 222.
[1078] Phisionomia, cap. 14 (1740), p. 241.
[1079] Ibid., cap. 10, p. 233.
[1080] If the ascription of this Commentary to Michael is correct, probably either he wrote it toward the end of his life or Sacrobosco composed the Sphere fairly early in his career, since he appears to have outlived Michael and to have composed his Computus ecclesiasticus or De anni ratione in 1244: see Duhem III (1915), p. 240. The lines quoted in DNB “John Holywood or Halifax” as on his tomb in the cloister of the Mathurins and as having reference to the date of his death are really the verses at the close of his Computus ecclesiasticus:
“M Christi bis C quarto deno quater anno
De Sacro Bosco discrevit tempora ramus
Gratia cui dederat nomen divina Johannes,” etc.
Cantor II (1913), p. 87, however, speaks of two different tomb inscriptions given by Vossius and Kästner but says that they agree on 1256 as the date of Sacrobosco’s death. The first line above quoted is sometimes interpreted as giving the date 1256 rather than 1244.
[1081] In the editio princeps of 1495 the marginal heading is, “Quid de planetis sentiunt theologi,” but in the text we read “thrologi,” which is possibly derived from “asthrologi” by a dropping off of the first syllable.
[1082] Edition of 1495, fol. b-ii, verso.