12mo, pp. iv, lii, 161, [1, ads], 20 + 12 folding plates. Contemporary unlettered sheep, spine divided by raised bands between double gilt rules. Some light soiling, plates creased, one plate with a horizontal closed tear about 8cm long (reinforced with archival tape on verso), a small wormtrack in gutter of appenxi. Binding rubbed and worn, insect damage to surface of leather. An ownership inscription dated 1839 to flyleaf.
A scarce schoolbook introduction to Newtonian physics, edited by John Collett Ryland (1723-1792), a prolific Baptist minister and schoolmaster in Northampton. The first edition, published in 1768, makes no mention of Newton on the title-page and gives Ryland as the author. A 'Fellow of the Royal Society' receives the attribution in this edition, and the preface to the first edition (reprinted here) thanks the anonymous friend for supplying the text: it was not, therefore, Ryland, but probably James Ferguson (1710-1776), author of 'Astronomy Explained upon Sir Isaac Newton's Principles', from whose 'Lectures on Select Subjects' the appendix newly added to this edition is taken (with permission). ESTC lists copies in 5 locations in the UK: BL, Cambridge, Dr Williams's Library, Northampton Record Office, and Oxford, plus 9 locations in the USA.