a Critical and Monthly Reviewer" (1808). He contributed several papers to the first series of the British Critic, and two to the Edinburgh Philosophical Journal, in 1822. 1801: Robertson gave evidence before a committee of the House of Commons which reported in 1801 on the expediency of replacing London Bridge by a single arch. In 1807 he graduated BD and DD. 1801: The same year he was in London making calculations for Lord Grenville's system of finance, and in 1808 he drew up the tables for Spencer Perceval's system of increasing the sinking fund by granting life annuities on government security. References W. F. Sedgwick, Abram Robertson (1751-1826), rev. Alan Yoshioka, Oxford Dictionary of National Biography, Oxford University Press, 2004 1751 births 1826 deaths People from Duns, Scottish Borders Scottish mathematicians 18th-century Scottish mathematicians 19th-century Scottish mathematicians Fellows of the Royal Society Savilian Professors of Geometry Alumni of Christ Church, Oxford Savilian Professors of Astronomy