[18] See Baudet, p. 18.
[19] See Baudet, pp. 18-19.
[20] Reference to Galileo and his attempts to solve the problems relative to the determination of longitude may be found in Kästner, A. G. Geschichte der Mathematik, 1796, vol. IV, p. 207; Galileo Galilei: Opere, III, p. 142; Baudet, pp. 131-145.
[21] See Extract uit de Resol. der Staten van Holland en West-Vriesland, 5 Aug., 1608, given by Baudet, pp. 156-158.
[22] See p. 58 for specific reference to some of the many striking similarities, which seem to give conclusive evidence that Hondius borrowed from Blaeu.
[23] See Baudet, P. J. H. Naschrift op. Leven en werken van W. Jz. Blaeu, pp. 15-18.
[24] The inscriptions in the original Dutch are given by Baudet: Naschrift, pp. 16-17.
[25] An extract from the Resolution is given by Baudet, p. 156.
[26] Baudet says: “I am unable to determine whether the World Map of 1605 and the Mappa Mundi, in two hemispheres, of that year, as referred to in the resolution of the States General, are the same. I believe, however, that the World Map is the ‘Nova totius terrarum orbis geographica ac hydrographica tabula, auct. Guiljelmo Blaeuw,’ drawn according to Mercator’s projection, to be found in the ‘Toonneel des Aerdrycx.’ It is not dated, but apparently was printed from a plate which had been used in 1606, though improved somewhat, but from it the date had been erased, which however, according to Lelewel, is slightly visible “on some copies.” See Baudet, pp. 85-86. The “Nova totius terrarum” is reproduced, p. 52.
[27] See Baudet, pp. 96-98, for extracts from his letters to Schickard.