As I just now read in Vol. iv., p. 244., some account of Berwick, and other natural children of James II., I was put in mind of the above anecdote, and should be glad of any information respecting the Miss Burr's parentage in question. Myself a collateral descendant of her husband, I know from other sources that the tradition is worthy of credit; and to the genealogist and antiquary it may be a historically interesting enquiry. H. W. G. R. _Northern Ballads._--Is any gentleman in possession of any _old printed_ copies of Danish or Swedish popular ballads, or of any _manuscript collection_ of similar remains? Are any such known to exist in any public library in Great Britain? By printed, of course I mean old fly-sheets, from the sixteenth century downward; they are generally of four, sometimes of eight, leaves small octavo. Any information, either personally, or through "N. & Q.," will much oblige GEORGE STEPHENS. Copenhagen. _"Blamed be the man," &c._--Where is the following couplet to be found? "Blamed be the man that first invented ink, And made it easier for to write than think." N. O. K. "_Quid est Episcopus._"--Can any correspondent furnish me with the reference to a passage supposed to exist in one of the early fathers (I think Irenæus):-- "Quid est episcopus, nisi primus presbyter?" X. G. X. _Henry Isaac._--I shall feel obliged to any person who can give any account (for genealogical purposes) of Henry Isaac, who lived at Roehampton about the middle of last century. He was a diamond merchant from Holland. He had a collection of pictures, one of which was the Lord of the Vineyard paying his Labourers, by Rembrandt. H. T. E. _German Poet quoted by Camden._--_Britannia, sive regnorum Angliæ, Scotiæ, et Hiberniæ chorographica descriptio_: Gulielmo Camdeno: Lond. 1607, folio, p. 302., Middlesex. "Nec magno hinc intervallo _Tamisim_ duplici ostiolo Colus postquam insulas sparserit, illabitur. _Ad quem_ ut nostræ ætatis Poeta Germanus lusit: "'Tot campos, sylvas, tot regia tecta, tot hortos Artifici dextrâ excultos, tot vidimus arces, Aut nunc Ausonio, Tamisis cum Tybride certet.'" Camden, speaking of the Colne falling with a double mouth into the Thames, quotes a German poet of his day; and I should be much obliged by any reader of the "N. & Q." favouring me with the name, and reference to the author from whence the preceding quotation is taken. --> F.