II. Architecture proper, then, naturally arranges itself under five heads:-- Devotional; including all buildings raised for God's service or honor. Memorial; including both monuments and tombs. Civil; including every edifice raised by nations or societies, for purposes of common business or pleasure. Military; including all private and public architecture of defence. Domestic; including every rank and kind of dwelling-place. Now, of the principles which I would endeavor to develope, while all must be, as I have said, applicable to every stage and style of the art, some, and especially those which are exciting rather than directing, have necessarily fuller reference to one kind of building than another; and among these I would place first that spirit which, having influence in all, has nevertheless such especial reference to devotional and memorial architecture--the spirit which offers for such work precious things simply because they are precious; not as being necessary to the building, but as an offering, surrendering, and sacrifice of what is to ourselves desirable. It seems to me, not only that this feeling is in most cases wholly wanting in those who forward the devotional buildings of the present day; but that it would even be regarded as an ignorant, dangerous, or perhaps criminal principle by many among us. I have not space to enter into dispute of all the various objections which may be urged against it--they are many and spacious; but I may, perhaps, ask the reader's patience while I set down those simple reasons which cause me to believe it a good and just feeling, and as well-pleasing to God and honorable in men, as it is beyond all dispute necessary to the production of any great work in the kind with which we are at present concerned. III. Now, first, to define this Lamp, or Spirit of Sacrifice, clearly. I have said that it prompts us to the offering of precious things merely because they are precious, not because they are useful or necessary. It is a spirit, for instance, which of two marbles, equally beautiful, applicable and durable, would choose the more costly because it was so, and of two kinds of decoration, equally effective, would choose the more elaborate because it was so, in order that it might in the same compass present more cost and more thought. It is therefore most unreasoning and enthusiastic, and perhaps best negatively defined, as the opposite of the prevalent feeling of modern times, which desires to produce the largest results at the least cost.