_Richard of Cirencester, &c.--Bishop Barlow_.--Your correspondent "S.A.A." (No. 6., p. 93), who is desirous of further information respecting Richard of Cirencester, will, I am sure, peruse with much interest and gratification a dissertation on that writer by K. Wex, which first appeared in the _Rheinisches Museum für Philologie_ for 1846, and was shortly after translated and inserted in the _Gentleman's Magazine_, with valuable notes by the translator.--Respecting the writers of notes on the margin of books, few notes of the kind, I apprehend, deserve better to be collected and published than those by the very learned Bishop Barlow, Provost of Queen's College from the year 1657 to 1677, and who left the chief part of his library to that society. The rest of his books, being such as were not in the Bodleian, he bequeathed to that library, of which he was for some years the librarian. The _Biographia Britannica_ represents him to have been "an universal lover and favourer of learned men, of what country or denomination soever." J.M. Oxford _Rev. J. Edwards on Metal for Telescopes_.--"T.J." informs the correspondent who inquired (No. 11, p. 174.) respecting this valuable paper, that it was printed in the _Nautical Almanac_ for 1787. E.B. PRICE adds, "_A Treatise on Optical Instruments_, published about twenty years ago by the Society for the Diffusion of Useful Knowledge, contains much useful and general information upon this subject; and it is stated in that work that Mr. Edward's treatise, which is now very scarce, is republishing in the _Technological Repository_." While "G.B.S." furnishes the information that the treatise in question may be procured from Mr. Murray, of Albemarle Street. _Ordination Pledges_.--In reply to the inquiry of "CLERICUS" (No. 10., p. 156.) for manuals containing a complete list of Ordination Pledges, may be mentioned Johnson's _Clergyman's Vade Mecum_, 2 vols. 12mo., and William's _Laws relating to the Clergy, being a Practical Guide to the Clerical Profession on the Legal and Canonical Discharge of their various Duties_, 8vo. The author of this useful work, which appears not to have been seen by Lowndes, says, in his advertisement, "The works which are already extant on Ecclesiastical Law, being either too diffuse or too concise for ready reference and practical use, the compiler of this volume has endeavored to remedy this defect by the publication of the following compendium." T.J. * * * * * NOTES ON BOOKS, SALES, CATALOGUES, ETC.