_Mistake as to an Eclipse_ (Vol. iv., p. 58.).--From your correspondent's mention of it, I should have supposed Casaubon meant that the astronomers had been mistaken in the _calculation_ of an eclipse. But the matter is of another kind. In the _lunar_ eclipse of April 3, 1605, two _observers_, Wendelinus and Lansberg, in different longitudes, made the eclipse end at times far more different than their difference of longitudes would explain. The ending of a lunar eclipse, observed with the unassisted eye, is a very indefinite phenomenon. The allusion to this, made by Meric Casaubon, is only what the French call a _plat de son métier_. He was an upholder of the ancients in philosophy, and his bias would be to depreciate modern successes, and magnify modern failures. When he talks of the astronomer being "deceived in the hour," he probably uses the word _hour_ for _time_, as done in French and old English. M. "_A Posie of other Men's Flowers_" (Vol. iv., p. 58.).--D. Q. is referred to Montaigne, who is the author of the passage; but not having access to his works, I am not able to give a paginal reference. H. T. E. Clyst St. George. _Davies' History of Magnetical Discovery_ (Vol. iv., p. 58.).--The _History, &c._, by T. S. Davies, is in the _British Annual_ for 1837, published by Baillière. M. _Marriage of Bishops_ (Vol. iv., p. 57.).--A. B. C. will find his questions fully answered in Henry Wharton's tract, entitled _A Treatise of the Celibacy of the Clergy, wherein its Rise and Progress are historically considered_, 1688, 4to. pp. 168. There is also another treatise on the same subject, entitled _An Answer to a Discourse concerning the Celibacy of the Clergy_, by E. Tully, 1687, in reply to Abraham Woodhead. E. C. HARRINGTON. The Close, Exeter, July 28. 1851. "_The Right divine of Kings to govern wrong_" (Vol. iii., p. 494.).--The same idea as that conveyed in this line is frequently expressed, though not in precisely the same words, in Defoe's _Jure Divino_, a poem which contains many vigorous and spirited passages; but I do not believe that Pope gave the line as a quotation at all, or that it is other, as far as he is concerned, than original. The inverted commas merely denote that this line is the termination of the goddess's speech. The punctuation is not very correct in any of the editions of the _Dunciad_; and sometimes inverted commas occur at the end of the last line of a speech, and sometimes both at the beginning and end of the line. JAMES CROSSLEY. _Equestrian Statues_ (Vol. iii., p. 494.).--In reply to F. M.'s Query respecting the Duke of Wellington's statue being the only equestrian one erected to a subject in her Majesty's dominions, I may mention that there is one erected in Cavendish Square to William Duke of Cumberland, who, though of the blood royal, was yet a subject. D. K. Miscellaneous. NOTES ON BOOKS, SALES, CATALOGUES, ETC.