Lot: 18
[John Arbuthnot] An essay on the usefulness of mathematical learning, in a letter from a gentleman in the city to his friend in Oxford. S. Wilmot, Oxford, 1721, 2nd Edition; octavo, title page and final page dust-affected, scattered foxing elsewhere; old catalogue number entered in ink at foot of title page; 37,[1]pp. Disbound, with remnants of old leather backstrip.
Lot: 19
James Smith A New Treatise of Fluxions: containing: I. The Elements of Fluxions, demonstrated in two easy propositions..II. A Treatise of Nascent and Evanescent quantities..III. Sir Isaac Newton’s Demonstrations of the Fluxions enlarged and illustrated. IV. Answers to the Principal objections in the Anylist. London, 1737; octavo, lacks title page; 59pp. A folding plate at front probably does not belong. Good clean text. Disbound, with remnants of old leather backstrip.
Lot: 20
[John Lawson] A Dissertation on the Geometrical Analysis of the Antients, with a Collection of Theorems and Problems, without solutions, for the Exercise of Young Students. Simmons & Kirkby, Canterbury, 1774; octavo; title page dust-affected; xxiv,32pp, plus two folding-plates. VG. Disbound, with remnants of old leather backstrip.
Lot: 21
Edward Waring A Letter to The Reverend Dr.Powell….In Answer to his Observations on the First Chapter of a book called Miscellanea Analytica, and his Defence of those Observations, Cambridge, 1760, 47pp plus plate; bound with [W.S. Powell] A Defence of the Observations on the First Chapter of a Book called Miscellanea Analytica, T. Merrill, Cambridge, 1760, 38pp; and [John Wilson] A Vindication of the Miscellanea Analytica: in Answer to a late Pamphlet entitled Observations, &c. T. & J. Merrill, Cambridge, 1760, 22pp plus blank leaf. Octavo. VG. Disbound, with remnants of old leather backstrip.