283. _Hobbes's "Leviathan"_ (Vol. iv., p. 314.).--You have inserted my inquiry respecting the frontispiece to Hobbes's _Leviathan_; I should also be glad to know the interpretation put by any of your readers on the various other symbols in that plate. They are, on one side of the title, a castle, a crown, a cannon, a pile of arms, and a field of battle, in compartments one below another; and on the other side, a church, a mitre, a thunderbolt, a collection of implements marked _syllogism_, _dilemma_, &c., and a tribunal. I have my own view of the meaning of each part of this, which is at your service when required. W. W. Cambridge. 284. _Wigtoun Peerage._--Can any of your legal correspondents inform me whether there exist any reports of the addresses of the Lord Advocate for Scotland, the king's Attorney-General, or the Lord Chancellor, on the hearing or decision of this case in the year 1782? The Lord Chancellor was Lord Thurlow; the Lord Advocate, Sir Henry Dundas; the Attorney-General, Mr. Wallace. S. E. G. 285. _Sale by Candle._--Forty or fifty years ago goods were advertised for public sale "by the candle." Can any of your readers inform me of the origin of this? I may remark that it was the custom then at some sales to have candles marked with red circles; and the moment the candle burned down to the mark, the lot put up was knocked down to the highest bidder; and, at some sales, a common candle was burned during the sale. J. S. A. Old Broad Street. Minor Queries Answered. _Derivation of Æra._--Will any of your correspondents inform me of the derivation of the word _æra_, as, if derived from the Latin word _æra_, no classical authority that I know of can be adduced. In Ainsworth I find _æra_ signifies a kind of weed amongst corn; a mark upon money to show the value; a remarkable period of time. J. N. G. G. [In Andrews' _Latin-English Lexicon_ our correspondent will find the following as the second definition of _Æra_, "ÆRA, Æ, f. (from _Æra_, the plural of _Æs_), a word belonging to Later Latin. 1. In Mathem. _The given number, according to which a calculation is to be made._ Vitruvius (Vetrubius) Rufus in Salmas. Exerc. I. p. 483. 2. _The item of an account_ for which in the class. _per æra_, as plur. of _æs_, came into use. Ruf. Fest. in Breviar. _in_. The passage of Lucil. cited by Nonius, 2, 42., _æra perversa_, is prob. also plur. 3. _The era or epoch_ from which time is reckoned."] _Tudur Aled._--Can any of your Cambrian correspondents inform me when Tudur Aled, a Welsh poet, flourished; and in what collection his works are to be found? A STUDENT.