In the British Museum is also preserved the gold signet-ring of Mary, Queen of Scots. On the face is engraved the royal arms and supporters of the kingdom of Scotland, with the motto ‘IN DEFENS’ and her initials ‘M. R.’ In the inner side of the seal a crowned monogram is engraved, ‘which might have been an unsolved enigma, but for the existence, in the State Paper Office, of a letter written by Mary to Queen Elizabeth, in which she has drawn the identical monogram after signing her name. Sir Henry Ellis, who first traced out this curious history, says, “It is clearly formed of the letters M. and A. (for Mary and Albany), and gives countenance to the opinion that the written monogram was intended for Elizabeth and Burghley to study, the subsequent creation of the title of Duke of Albany in Lord Darnley ultimately opening their eyes to the enigma.”’ A similarly interesting ring is that of Henry, Lord Darnley, husband to Mary, Queen of Scots, now in the Waterton Collection at the South Kensington Museum. On the bezel it bears the two initials ‘M. H.’ united by a lover’s knot. In the hoop is the name engraved ‘HENRI L. DARNLEY,’ and the year of the marriage, 1565. [Illustration: Signet-ring of Mary, Queen of Scots, and the Darnley ring.] In the interesting ‘Notices of Collections of Glyptic Art,’ by the Rev. C. W. King, M.A., published in the ‘Archæological Journal’ for October 1861, is a description of some remarkable rings in the Queen’s and other collections. By the kindness of the editor of the Journal I am enabled to give an abstract of the valuable papers contributed by the Rev. C. W. King. In the Royal Collection is a ruby set in a massy gold ring, having the name of ‘Loys XII.,’ and the date of his decease, 1515, engraved inside. The ruby has a head in profile of King Louis, and is a stone of considerable size (being half an inch in diameter) and of the finest quality. The drawing is correct, though somewhat stiff, after the usual manner of the Quattro Cento heads; the relief is somewhat flat, and all the details most accurately finished; both for material and execution this gem is an invaluable monument of the early times of the art.