Several have tried to restore the text to discover Apollonius's solution, among them Snellius (Willebrord Snell, Leiden, 1698); Alexander Anderson of Aberdeen, in the supplement to his Apollonius Redivivus (Paris, 1612); and Robert Simson in his Opera quaedam reliqua (Glasgow, 1776), by far the best attempt.
He was acquainted with the Scottish mathematician Robert Simson and provided a supporting testimonial when Simson was under consideration for appointment as Professor of Mathematics at the University of Glasgow.
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He was born at Crook near Kendal, and educated at Stand grammar school and Glasgow University, where he studied under Francis Hutcheson and Robert Simson.