—We are informed by Baron Maseres, as quoted by Lingard, that the Danes, in the last invasion by Sweyn, 1013, had vanes in the shape of birds or dragons fixed on their masts, to point out the direction of the wind. Is there any record of an earlier adoption of this method of ascertaining the way of the wind?

B. B.

Richard of Cirencester de Situ Britanniæ.

—Is this work a forgery or not? Charles Julius Bertram, Professor of English in the Royal Marine Academy at Copenhagen, wrote to Dr. Stukeley in 1747 that such a manuscript was in the hands of a friend of his. It was not until some time had elapsed, and after Dr. Stukeley was presented to St. George's Church, Queen Square, that he "pressed Mr. Bertram to get the manuscript into his own hands, if possible; which, at length, with some difficulty, he accomplished;" and sent to Dr. Stukeley, in letters, a transcript of the whole. Authors go on quoting from this work as genuine authority, and therefore are perhaps misleading themselves and their readers; and it would be conferring a great boon if "N. & Q." could clear up the doubt as to its authenticity.

Mr. Worsaae, the eminent Danish author, or his English translator, are exactly in the position to render this further service to antiquarian literature; and, as relating to the subject of Roman Britain, the question is of so much interest that a little trouble would not, probably, be deemed uselessly expended in the inquiry.

G. I.

Spanish Vessels wrecked on the Irish Coast.

—Is it true that sixteen Spanish vessels, with 5300 men on board, were wrecked on the coast of Ireland in 1589, and all put to the sword or hanged by the executioner, at the command of the Lord Deputy; who found that they had saved and got on shore a good deal of their treasure which he wanted to secure for himself. Where is any account of it to be found? How came Spanish ships so far north?

CYRUS REDDING.

Analysis of Newton's Principia.