Note 543 — Chapter II · FAILING HEALTH AND LOSS OF SIGHT.
G. (George) Sturge translation
See letters from Hortensius and Realius to Galileo of 26th Jan. and 3rd Mar. 1637 (Op. vii. pp. 95-99, 100-102); letter from Const. Huyghens to Diodati, 13th April, 1637 (Op. vii. pp. 111-113).