Account of the Book printed at Oxford in mcccclxviii under the title Exposicio sancti Jeronimi in simbolo apostolorum' (London). Here Singer displayed bibliographical knowledge, but Rufinus's Latin treatise on the Apostles' Creed was published at Oxford in 1478, and not, as Singer maintained, in 1468; the earlier date in the colophon was a misprint. Singer later called in as many copies of his tract as he could. He finally recanted his original opinion in Leigh Sotheby's 'Principia Typographica,' iii. 19. For Triphook he edited a series of reprints of sixteenth-century English literature. These included Sir John Harington's 'Metamorphosis of Ajax' (1814); 'Shakespeare's Jest Book' (3 parts, 1814–15); William Roper's 'Life of More' (1817); poems by Richard Lovelace (1817), George Chapman (1818), Thomas Lodge, Shakerley Marmion, John Chalkhill, and Christopher Marlowe (all in 1820), and Joseph Hall's 'Satires' (1824), as well as James Puckle's 'Club' (1834). Other poems reproduced by Singer in his early days were Bartholomew Griffin's 'Fidessa' (1815), Edward Fairfax's 'Tasso' (1817, 2 vols.), and Henry Constable's 'Diana' (1818, in facsimile). In 1815 he prepared from the Lambeth manuscripts the first complete edition of the life of Thomas Wolsey by George Cavendish (2nd ed. 1827). His 'Researches into the History of Playing Cards; with Illustrations of the Origin of Printing and Engraving on Wood' was published in 1816; two hundred and fifty copies were printed. It was superseded by the 'Playing Cards of Various Ages and Countries,' published in three volumes (1892–95) by Lady Charlotte Elizabeth Schreiber. In 1820 Singer printed for the first time a full transcript of the 'Anecdotes of Joseph Spence', the manuscript of which he found among Spence's papers. An incomplete edition prepared by Edmond Malone was published independently on the same day as Singer's fuller version, which was reprinted in 1859. In 1823 he printed for the first time Sir Philip Sidney's paraphrase of the Psalms. In 1828 he made a contribution to historical literature in 'The Correspondence of Henry Hyde, earl of Clarendon, and of his brother Lawrence Hyde, earl of Rochester, with the Diary of Lord Clarendon, 1687–1690, and the Diary of Lord Rochester; published for the greater part for the first time from the original MSS.' The manuscripts belonged to Singer's friend William Upcott. A popular venture was an edition of Shakespeare in ten volumes, which Singer undertook for Whittingham; it was issued by the Chiswick Press in 1826. Singer was