[46] Op. vi. p. 121, note 1.
[47] Compare the letters of Martin Hasdal, Alexander Sertini, and Kepler to Galileo in 1610. (Op. viii. pp. 60-63, 65-68, 82-85, 88, 89, 101, 113-117.)
[48] See the letter which Kepler wrote about it to Galileo on 25th Oct. 1610. (Op. viii. pp. 113-117.)
[49] Wedderburn’s reply was called: “Quatuor Problematum, quæ Martinius Horky contra Nuncium Sidereum de quatuor Planetis novis proposuit”; Roffeni’s, “Epistola apologetica contra cœcam peregrinationem cujusdam furiosi Martini cognomine Horky editam adversus, Nuncium Sidereum.”
[50] Op. vi. pp. 114, 115.
[51] Op. vi. p. 127.
[52] May 7th, 1610. (Op. vi. pp. 93-99.)
[53] Op. vi. p. 165.
[54] Op. xv. (Viviani), p. 343.
[55] Op. vi. p. 129.