[72]The Works of the Honourable Robert Boyle in five volumes, to which is prefixed the Life of the Author, Vol. I, London, 1744, p. 24.
[73]The letter is printed in John Wallis' De algebra tractatus, 1693, p. 206.
[74]See La Correspondance de Descartes, published by Charles Adam and Paul Tannery, Vol. II, Paris, 1898, pp. 456 and 457.
[75]H. Bosmans, S.J., "La première édition de la Clavis Mathematica d'Oughtred. Son influence sur la Géométrie de Descartes," Annales de la société scientifique de Bruxelles, 35th year, 1910-11, Part II, pp. 24-78.
[77]Vincent Wing, Harmonicon coeleste, London, 1651, p. 5.
[78]Seth Ward, In Ismaelis Bullialdi astronomiae philolaicae fundamenta inquisitio brevis, Oxford, 1653, p. 7.
[79]John Wallis, Elenchus geometriae Hobbianae, Oxford, 1655, p. 48.
[80]An Idea of Arithmetick, at first designed for the use of the Free Schoole at Thurlow in Suffolk. . . . . By R. B., Schoolmaster there, London, 1655, p. 6.
[81]The Miscellanies: or Mathematical Lucubrations, of Mr. Samuel Foster . . . . by John Twysden, London, 1659, p. 1.
[82]Moor's Arithmetick in two Books, London, 1660, p. 89.
[83]Isaac Barrow, Euclidis data, Cambridge, 1657, p. 2.
[84]Francisci Dulaurens Specima mathematica, Paris, 1667, p. 1.
[85]Elémens des mathématiques, Paris, 1675, Preface signed "J. P."
[86]Nouveaux élémens de géométrie, Paris, 1692 (permission to print 1684).
[87]Ozanam, Dictionnaire mathématique, Paris, 1691, p. 12.
[88]Analyse des infiniment petits, Paris, 1696, p. 11.
[89]Petro Nicolas, De conchoidibus et cissoidibus exercitationes geometricae, Toulouse, 1697, p. 17.
[90]R. P. Bernard Lamy, Elémens des mathématiques, Amsterdam, 1692 (permission to print 1680).
[91]Nouveaux élémens de géométrie, 2d ed., The Hague, 1690, p. 304.
[92]W. W. Beman in L'intermédiaire des mathématiciens, Paris, Vol. IX, 1902, p. 229, question 2424.
[93]John Collins, The Mariner's Plain Scale New Plain'd, London, 1659, p. 25.
[94]James Gregory, Optica promota, London, 1663, pp. 19, 48.
[95]Philosophical Transactions, Vol. III, London, p. 868.
[96]William Leybourn, The Line of Proportion, London, 1673, p. 14.
[97]Elementa geometriae . . . . a Gulielmo Sanders, Glasgow, 1686, p. 3.
[98]Cocker's Decimal Arithmetick, . . . . perused by John Hawkins, London, 1695 (preface dated 1684), p. 41.