What W. R. M. says about the pronunciation of certain names of towns in Ireland, as confirming the tradition of a Milesian colony from Spain, is a complete mistake. The pronunciation of _gh_ to which he alludes, exists only amongst the English (or Anglicised natives) who are unable to pronounce the guttural _ch_ or _gh_ of the Celtic Irish, and have substituted for it the sound of _h_, or the sound of the Spanish _j_, to which W. R. M. refers. Besides this, every philologist knows that the present language of Spain had no existence at the period to which the Milesian invasion of Ireland must be referred. It is true that on the west coast of Ireland some families among the peasantry retain many of the characteristic features of modern Spaniards; but this circumstance is due to an intercourse with Spain of a much more recent date than the Milesian invasion, and is therefore no evidence of that event. It is well known that considerable trade with Spain was carried on at Galway and other ports of western Connaught, two centuries ago, and that many Spanish families settled in Ireland, or intermarried with the natives during the sixteenth and seventeenth centuries. To remove W. R. M.'s mistaken impression that Drogheda, Aghada, &c., are names of Spanish origin, it may be well to inform him, first, that the _gh_ in such names is not sounded like the Spanish _j_, except, as I have said, by--(I was on the point of writing _foreigners_), but I mean by those who are unable to pronounce our Celtic guttural aspirates. Secondly, that Drogheda, Aghada, &c., are names significant in the Irish language and perfectly well understood, and that as now written they are not seen in their correct orthography, but in an Anglicised spelling intended to represent to English ears the native pronunciation. In the last century Drogheda was usually written _Tredagh_ in English; but the word in its proper spelling is _Droichet-atha_, the bridge of the ford, _trajectum vadi_. There are many places in Ireland named from this word _Droichet_, which is no doubt the Latin _trajectum_, the same which forms a part of the name of _Utrecht_ (Ultrajectum), and other towns on the continent. The word _Agha_, properly _Achadh_, signifies a _field_, and enters into the composition of hundreds of topographical names in Ireland. But in every case the _gh_ (or _ch_, as it properly is) is pronounced gutturally by the peasantry; the _h_ or Spanish _j_ sound is a modern Anglicised corruption. On the subject of Irish proper names of places and persons a vast body of curious and valuable information will be found in the publications of the Irish Archæological Society, and also in O'Donovan's splendid edition of the _Annals of the Four Masters_. HIBERNICUS.