tions, and have employed illustrations freely, in the hope that the pencil may perhaps succeed where the pen must inevitably have failed.
The preparation of the illustrations has occupied a large part of my time during the last six years. With the exception of the views upon pp. 21, 23, and 33, the whole of the illustrations have been engraved expressly for the book, and, unless it is otherwise specified, all are from my own sketches. About fifty have been drawn on the wood by Mr. James Mahoney, and I am much indebted to that artist for the care and fidelity with which he has followed my slight memoranda, and for the spirit that he has put into his admirable designs. Most of his drawings will be identified by his monogram. Twenty of the remainder are the work of Mr. Cyrus Johnston, and out of these I would draw especial attention to the view of the Matterhorn facing p. 84, the striated rock upon p. 141, and the bits from the Mer de Glace upon pp. 355-6. The illustrations have been introduced as illustrations, and very rarely for ornamental purposes. We have subordinated everything in them to accuracy, and it is only fair to the artists who have honoured me by their assistance to say that many of their designs would have ranked higher as works of art if they had been subjected to fewer restrictions. Most of the subjects have required very fine and finished engraving, and this, in its turn, has compelled the use of paper of unexceptionable quality. The whole of the paper in the book has been made expressly for it by Messrs. Dickinson, who assure me that it is the finest paper they have ever produced—it is certainly the most perfectly manufactured paper that has come under my notice. Mr. Clark's printing will speak for itself.
It is now my pleasant duty to acknowledge assistance that has been rendered, directly or indirectly, by friends and strangers, at home or abroad. First of all, my thanks are due to my companions for having placed their journals and sketches freely at my disposal. I am particularly obliged to Mr. J. Longridge, to Mr. T. F. Mitchell, and to Mr. W. Cutbill, for the facilities that they
