_Dutch Pottery_ (Vol. v., p. 343.; Vol. vi. p. 253.).--At Arnhem, about sixty-five or seventy years ago, there existed a pottery founded by two Germans: H. Brandeis, and the well-known savant H. von Laun, maker of the planetarium (orrery) described by Professor van Swinden, and purchased by the Society _Felix Meritis_ in Amsterdam. The son of Mr. Brandeis has still at his residence, No. 419. Rapenburgerstraat, several articles manufactured there: such as plates, &c. What I have seen is much coarser than the Saxon porcelain, yet much better than our Delft ware. Perhaps Mr. Van Embden, grandson and successor of Von Laun, could give farther information. S. J. MULDER. P.S.--Allow me to correct some misprints in Vol. vi., p. 253. Dutch and German names are often cruelly maltreated in English publications. In this respect "N. & Q." should be an exception. For "L_i_chner" read L_ei_chner; for "Dorp_h_eschrÿver" read Dorp_b_eschrÿver; for "Bl_a_sse" read Bl_ü_ss_é_; for "H_e_eren" read H_a_eren; for "Palland_h_" read Palland; for "Dae_n_b_a_r" read Dae_u_b_e_r.--From the _Navorscher_. _Cranmer's Correspondences_ (Vol. vii., p. 621.).--Will MR. WALTER be so good as to preserve in your columns the letter of which Dean Jenkyns has only given extracts? Two points are to be distinguished, Cranmer's wish that Calvin should assist in a general union of the churches protesting against Romish error--Calvin's offer to assist in settling the Church of England. The latter was declined; and the reason is demonstrated in Archbp. Laurence's _Bampton Lectures_. S. Z. Z. S. _Portable Altars_ (Vol. viii., p. 101.).--I am not acquainted with any treatise on the subject of portable altars, from which your correspondent can obtain more information, than from that which occupies forty-six pages in the _Decas Dissertationum Historico-Theologicarum_, published, for the second time, by Jo. Andr. Schmidt, 4to. Helmstad. 1714. R. G. _Poem attributed to Shelley_ (Vol. viii., p. 71.).--The ridiculous extravaganza attributed to Shelley by an American newspaper, was undoubtedly never written by that gifted genius. It bears throughout unmistakeable evidence of its transatlantic origin. No person, who had not actually witnessed that curious vegetable parasite, the _Spanish moss_ of the southern states of America, hanging down in long, hairy-like plumes from the branches of a large tree, would have imagined the lines,-- "The downy clouds droop Like moss upon a tree." Who, again, could believe that Shelley, an English gentleman and scholar, could ever, either in writing or conversation, have made use of the common American vulgarism, "play hell!" {184} The question of the authorship of such a production, apart from its being attributed to Shelley, is, in my humble opinion, a matter of little or no interest. But as a probable guess, I should say that it carries strong internal evidence of having been written by that erratic mortal, Edgar Poe. W. PINKERTON. Ham.