_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._--In the _Journal des Savants_ for April of this year, the celebrated mathematician Biot, in a review of the _Correspondence of Sir Isaac Newton and Cotes_ (Cambridge, 1850), makes mention, with the highest praise, of an analysis of Sir Isaac's _Principia_ contained in the _Acta Eruditorum_ for 1688. Mons. Biot says that at that time there were only two men who could have written such an analysis, Halley and Newton himself; but adds, that the style is not Halley's, being too concise and simple for him. His admiration could not have been contained within such bounds. M. Biot firmly believes that the writer of this analysis was no other than Newton himself (_ex ungue Leonem_), and earnestly calls on the learned of England and Germany to assist in discovering the origin of the analysis; should there perhaps be any means left for doing so in the literary depôts of the two countries. Permit a contributor to "N. & Q." to repeat M. Biot's inquiry through the medium of a publication far more extensively circulated in England than the _Journal des Savants_. J. M. Minor Queries Answered. _Welsh Women's Hats._--What was the origin of the peculiar hat so universally worn by women of the lower orders in Wales; and at what period did it come into use? TREBOR.