And here it may be observed, that _humilis_ never had, except in the Vulgate and in ecclesiastical writers, the metaphorically Christian sense to which its derivatives in modern tongues are generally confined, and to which I believe the Gaelic _umhal_ to be strictly confined. But the original words for _humble_ are _iosal_ and _iriosal_, cognate with the Irish _iosal_ and _iriseal_, and the Cymric _isel_; and the olden and more established words for the earth are, both in Gaelic and Irish, _talamh_ and _lar_, cognate with the Cymric _llawr_. All these facts lead to a reasonable suspicion that _uim_, _umhal_, and _umhailteas_ (an evident naturalisation of a Latin word) are all derived from Latin at a comparatively recent date, as certainly as _umile_, _humilde_, _'humble_, and _'humble_ are, and in the same Christian sense. The omission of an aspirate in the Gaelic word is then easily accounted for, without supposing it not to exist in other languages, and for this very simple reason, that no Gaelic word commences with _h_. There are _some_ Celtic roots undoubtedly in the Latin language. It would be difficult, for example, to derive _moenia_, _munire_, _gladius_, _vir_, and _virago_ from any other origin, but much the larger number of words, in which the two languages resemble each other, are either adoptions from the Latin or derivatives from one common source, e. g. _mathair_ and _mother_, _brathair_ and _brother_, as well as the Latin _mater_ and _frater_, from the Sanscrit _matri_ and _bhratri_, &c., as all comparative philologists are well aware. Would your correspondents call it the _'Ebrew_ language, because a Gael calls it, as he must do, _Eabrach_? E. C. H. * * * * * PHOTOGRAPHIC CORRESPONDENCE. _The Calotype Process: curling up of Paper._--I am happy in having the opportunity of replying to your correspondent C. E. F. (Vol. ix., p. 16.), because, with himself, I have found great annoyance from the curling up of _some_ specimens of paper. In the papers recently sold as Turner's, I find this much increased upon his original make, so much so that, until I resorted to the following mode, I spoiled several sheets intended for negatives, by staining the back of the paper, and which thereby gave a difference of intensity when developed after exposure in the camera.