Your correspondent ERICA will not, I think, find an instance in this country of a person having more than one Christian name before the last century. Charles James Fox and William Wyndham Grenville are the two earliest instances I can find. It is trivial but curious to observe, that in the lists given at the beginning of the _Oxford Calendar_ of the heads of colleges and halls from their several foundations, the first who appears with two Christian names is the venerable president of Magdalene College. Antony Ashley Cooper is only a seeming exception; his surname was Ashley-Cooper, as is proved by his contributing the letter _a_ to the word _cabal_, the nickname of the ministry of which he formed a part. We find the custom common enough in Germany at the time of the Reformation, and still earlier in Italy. I apprehend that its origin is really in the _tria nomina_ of Roman freemen. It was introduced into this country through our royal family, but I am not aware of any prince who had the benefit of it before Charles James. I apprehend the passage which ERICA quotes from Lord Coke has not the significance which he attributes to it. A man can have but one Christian or baptismal name, of however many single names or words that baptismal name may be composed. I have spoken in this letter of two Christian names, in order to be more intelligible at the expense of correctness. J. J. H. Temple. _Lamech's War-song_ (Vol. vii., p. 432.).--There have been many speculations about the origin and meaning of these lines. I agree with EWALD in _Die Poetischen Buecher des Alten Bundes_, vol. i., who calls it a "sword-song;" and I imagine it might have been preserved by tradition among the Canaanitish nations, and so quoted by Moses as familiar to the Israelites. I should translate it-- "Adah and Zillah, hear ye my voice! Wives of Lemek, heed ye my saying! For man do I slay, for my wound; And child, for my bruise. For seven-fold is Cain avenged, And Lemek seventy-fold and seven." Bishop Hall, in his _Explication of Hard Texts_, paraphrases it thus: "And Lamech said to his wives, 'Adah and Zillah, what tell you me of any dangers and fears? Hear my voice, oh ye faint-hearted wives of Lamech, and hearken unto my speech; I pass not of the strength of my adversary: for I know my own valour and power to revenge; if any man give me but a wound or a stroke, though he be never so young and lusty, I can and will kill him dead.'" Your correspondent H. WALTER says that "every branch of Cain's family was destroyed by the Deluge." Where is the authority to be found for the tradition, quoted in an _Introduction to the Books of Moses_, by James Morison, p. 26., that Naameh, the daughter of Lamech the Cainite and Zillah, married Ham, the son of Noah, and thus survived the Flood? W. FRASER. Tor-Mohun.