2. I cannot discover that the family ever possessed lands in Scotland. They were formerly owners of Denton Castle, co. York (which they sold to the family of Ibbetson, Barts.), and afterwards of Leeds Castle, Kent. 3. Precise information on this point is looked for from some transatlantic correspondent. 4. The claim of the Rev. Bryan, eighth Lord Fairfax, was admitted by the House of Lords, 6th May, 1800 (_H. L. Journals_). He was, I presume, born before the acknowledgment of independence. 5. The title seems to be erroneously retained in the Peerages, as the gentleman now styled Lord Fairfax cannot, it is apprehended, be a natural-born subject of the British Crown, or capable of inheriting the dignity. It seems, therefore, that the peerage, if not extinct, awaits another claimant. As a direct authority, I may refer to the case of the Scottish earldom of Newburgh, in the succession to which the next heir (the Prince Gustiniani), being an alien, was passed over as a legal nonentity. (See _Riddell on Scottish Peerages_, p. 720.) There is another case not very easily reconcilable with the last, viz. that of the Earl of Athlone, who, though a natural-born subject of the Prince of Orange, was on 10th March, 1795, permitted to take his seat in the House of Lords in Ireland (_Journals H. L. I._). Perhaps some correspondent will explain this case. H. G. * * * * * PHOTOGRAPHIC CORRESPONDENCE. _Mr. Lyte on Collodion._--When I had the pleasure of meeting you in London, I promised that I would write to you from this place, and give you a detailed account of my method of making the collodion, of which I left a sample with you; but since then have been making a series of experiments, with a view, first, to simplifying my present formulæ, and next, to produce two collodions, one of great sensibility, the other of rather slower action, but producing better half-tones. I have also been considering the subject of {157} printing, and the best methods of producing those beautiful black tints which are so much prized; and I think that, although the processes formerly given all of them produce this effect with tolerable certainty, yet many operators, in common with myself, have met with the most provoking failures on this head, where they felt the most certain of good results.