231. _The "Gododin."_--In the Note on "The Antiquity of Kilts," MR. STEPHENS quotes the _Gododin_, an ancient poem, or poems, on which there is great diversity of opinion regarding its contents. The _Gododin_ was written or composed by Aneurin, in the dialect of the Northumbrian Britons, about the year 510, according to Llwyd. It is evident that a work of this description, with the usual accidents attending on transmission, must necessarily be somewhat obscure at the present day. Indeed, it appears to be so much so, that there are two very different versions; one giving it as the description of a battle, in which the intoxicated Britons were easy victims to the swords of the "stranger;" the other version, by the Rev. E. Davies, refers it to the "Brad y Cyllyll Hirion," (or, Plot of the Long Knives), or massacre of the British chiefs at Stonehenge, during a feast. Now as this event is stated to have occurred in 472, the Dinogat of Aneurin is not the Dinogat of 577. Moreover Davies describes him as Octa, a son of the Saxon Hengist. As MR. STEPHENS does not follow this version, and as he has given considerable attention to those subjects, perhaps he is enabled to decide this _questio vexata_. It should be observed that Davies accompanies his version with reasons that give it much weight. GOMER. 232. _Frontispiece to Hobbes's Leviathan._--There are curious circumstances about this frontispiece which some of your readers may explain. The figure of Leviathan represents the upper part of a man with a crown on his head, a sword in his right hand, and a crozier in his left, the body and arms being made up of small human figures in various dresses. In the common editions the face has a manifest resemblance to Cromwell (the work was published in 1651), although it wears, as I have said, a regal crown. But in the copy belonging to Trinity College Library, the face appears to be intended for Charles I. The engraving of this copy is very much worse than the other, and is not worked into the same careful detail by the artist, though the outline is the same: and the text of the book is a separate and worse impression, though the errata are the same with the other copies, as well as the date. How Hobbes himself, or any other person, should come to print the Leviathan in this manner, it seems difficult to explain. I have also a small French translation of Hobbes, _De Corpore Politico_, dated 1652, which has a similar figure for a frontispiece, but with an upright sword in the right, and a balance in the left, hand. W. W. Cambridge. 233. _Broad Arrow or Arrow Head._--What is the origin of the arrow head as a government mark? [Arrow symbol] 234. _Deep Well near Bansted Downs._--Mr. Robert Hooke, professor at Gresham College, writing in 1674, says he has-- "seen at a gentleman's house, not far from Bansted-Downs in Surrey, a well which is dug through a body of chalk, and is near 360 feet deep, and yet dry almost to the very bottom."