I intended to have contributed a series of papers to "N. & Q." on the brute creation, on plants and flowers, &c.; and in a Note on the latter subject I promised to follow it up. However, as circumstances have changed my intentions, I think it may be well to mention that I have in hand a work on Macrocosm, or World of Nature around us, which shall be published in three separate parts or volumes. The first shall be devoted to the Brute Creation; the second shall be an Herbal, with a Calendar of dedicated Flowers prefixed; the third shall contain Chapters on the Mineral Kingdom: in the last I shall treat of the symbolism of stones, and the superstitions respecting them. I purpose in each case, as far as possible, to go to the fountain-head, and shall give copious extracts from such writers as St. Ildefonso of Toledo, St. Isidore of Seville, Vincent of Beauvais, St. Basil, Origen, Epiphanius, and the Christian Fathers. As the work I have sketched out for myself will require time to mature, I shall publish very shortly a small volume, containing a breviary of the former, which will give some idea of the manner in which I shall treat the proposed subject. Many correspondents of "N. & Q." have evinced great interest in the line I intend to enter upon. (See Vol. i., pp. 173. 457.; Vol. iv., p. 175.; Vol. vi., pp. 101. 272. 462. 518.) Their Queries have produced no satisfactory result. I myself made a Query in my "Chapter on Flowers," some months ago, respecting Catholic floral directories, and two works in particular, about which I was most anxious, and which were quoted in _The Catholic Florist_, London, 1851, and I have received no answer. Mr. Oakley, indeed, wrote to me to say that he "only edited it, and wrote a preface," and that he forwarded my Query "to the compiler:" the latter personage, however, has not favoured me with a reply. In spite of all these discouragements, I have taken the step of bringing my contemplated work before the readers of "N. & Q.," and I shall gratefully acknowledge any communications relative to legends, folk-lore, superstitions, symbolism, &c. bearing on the subjects proposed. As I intend inserting a bibliographical list of the chief works which come under the scope of each volume, I might receive much valuable assistance on this point, especially as regards Oriental and other foreign books, which might escape my researches. As regards the brute creation, I have gotten, with the kind assistance of the editor of "N. & Q.," Hildrop's famous reply to Father Bougeant; and I have sent to Germany for Dr. Kraus's recent work on the subject. EIRIONNACH. * * * * * DR. SOUTH'S LATIN TRACT AGAINST SHERLOCK.