Tours such as these have, I think, given me a fair chance of forming a right judgment as to most of the features of Spanish architecture; but it were worse than foolish to suppose that they have been in the slightest degree exhaustive, for there are large tracts of country which I have not visited at all, others in which I have seen one or two only out of many towns which are undoubtedly full of interesting subjects to the architect, and others again in which I have been too much pressed for time. Yet I hardly know that I need apologize for my neglect to see more when I consider that, up to the present time, so far as I know, no architect has ever described the buildings which I have visited, and indeed no accurate or reliable information is to be obtained as to their exact character, or age, or history. The real subject for apology is one over which I have had, in truth, no control. The speed with which I have been compelled to travel, and the rapidity with which I have been obliged to sketch and take dimensions of everything I have seen, have often, no doubt, led to my making errors, for which, wherever they exist, I am sincerely sorry. In truth, the work I undertook was hardly the mere relaxation from my ordinary artistic labour for which it was first of all intended, and has been increased not a little by the labour which I have undertaken in the attempt to fix by documentary evidence, where possible, the ages of the various parts of the buildings I have described. It will be observed that I have not visited the extreme south of Spain; and this was from the first a settled purpose with me. We have already been treated almost to surfeit with accounts of the Moorish remains at Granada, Seville, Cordoba, and other places in the south; but beside this my anxiety was to see how the Christians and not how the Moors built in Spain in the middle ages, and I purposely, therefore, avoided those parts of the country which during the best period of mediæval art were not free from Moorish influence. The pages of this book are the best evidence I can give of the wisdom of such a decision, and I need only say here that I was more than satisfied with the purity and beauty of the Christian architecture of Spain, and that I have no hesitation in the advice which I give to others to follow in my track and to make good the deficiencies in my investigations, of which I am so thoroughly conscious. By this time travelling on the great high road through Spain _viâ_ Madrid is much easier than it was when I first made the journey. The railway to Madrid is now either completed or all but completed, and it is possible to travel from Calais to Alicante on an almost unbroken line. It is a matter to be grateful for in most respects, yet I rejoice that I made my first journey when it was still necessary to make use of the road, and to see something on the way both of the country and of the people.