In the early part of this year I paid a visit to the north-western part of Donegal. My stay was short and my time too much taken up with other matters to allow of detailed geological work; but there were two things that at once attracted the attention of the most casual observer, the bedded character of the granite, and the traces of former wide-spread glaciation. To these I gave such time as I could, and on my return threw my notes into a paper which was read before the Geological Society of London. On seeing my paper, Mr. E. H. Scott had the kindness to send me copies of two papers of his own and of a report by himself, Sir E. Griffith, and Professor Haughton, on the Donegal Granites, in which, among other matters, the bedded character of these rocks was pointed out.