I do not exactly see the object of MR. WARDEN'S inquiry (if it indeed be one), as your correspondent R. D. H. had already traced it from Cardinal Polignac to Manilius; but, as perhaps MR. WARDEN means to inquire where _he_ may have read it, I beg leave to inform him that line was first published as anonymous in the _Correspondence de Grimm et de Diderto_, April, 1778, and was lately reproduced in the _Quarterly Review_ for June, 1850, with the addition that it was from the pen of _Turgot_, as the authority, I presume, of the Life, art. TURGOT, in the _Biographie Universelle_. C. _Meaning of Royd as an Addition to Yorkshire Names_ (Vol. v., p. 489.).--The glossary to Hulton's _Coucher Book of Whalley Abbey_ at once gives it thus: "RODA, an assart, or clearing. Rode land is used in this sense in modern German, in which the verb roden means to clear. The combination of the syllable rod, _rode_, or _royd_, with some other term, or with the name of an original settler, has, no doubt, given to particular localities such designations as Huntroyd, Ormerod, &c., &c." See also Lower _On Surnames_ (3rd edit. i. 85.), and an elaborate note in Dr. Whitaker's _Whalley_, referred to in his account of Ormerod (3rd edit. p. 364.). In the sense which Dr. W. gives to _Rode_, or _Royd_, as "a participial substantive of the provincial verb _rid_, to clear or grub up," that word will be found singly, or in combination, near forests and chases from the Lancashire Pendle to the Devonshire Dartmoor. It occurs also in Rodmore, Rodleys, &c., in the forest district of Gloucestershire over Severn; and Murray's _Handbook_ may be referred to for Wernigerode, Elbingerode, &c., in the Hartz forest of Germany. In Lancashire and Yorkshire the adjunct sometimes refers to the _early proprietor_, as in Monkroyd, Martinrode, &c.; sometimes to the _trees ridded_, as in Oakenrode, Acroyd, Hollinrode, Holroyd, &c.; sometimes to other characteristics. Instances of all kinds will be found in the _Whalley Coucher Book_, printed by the Chetham Society. LANCASTRIENSIS. _Binnacle_ (Vol. v., p. 499.).--This word, which signifies the case or covering of the compass, was until the last thirty years spelled and pronounced "bittacle," and is derived, I should imagine, from the French word _habitacle_, a little habitation, a hut, a covering. It is almost the only one of our nautical terms which can be traced to a French origin. C. K. _Plague Stones_ (Vol. v., p. 500.).--I have not observed that any of your correspondents have noticed the stones near the romantic village of Eyam, about four and a half miles E. N. E. of Tideswell in Derbyshire.