I am much pleased with Mr. Houlston's illustration of " The Irish Fern" in your last Number. I am afraid, however, that ere long it will have to be classed as an extinct British species. I was in Ireland this autumn, and visited the Tore Cascade, Killarney; but I did not find it there. It is reported to grow at Youghal, and probably may still be found in one or two other localities; but I believe it is daily becoming more difficult to be met with. This fact, therefore, should induce people to take the greater care of those they may have under artificial cultivation. J. W. J.