The first room which we now enter is a circular vestibule, where the supine arches of the four openings are particularly offensive, because they are very large in proportion to the building; some scheme arches in the great hall are also disagreeable, but the hall itself is a noble room, and produces the full effect of its large dimensions. There is a pleasure arising from these large and simple parts, which it is impossible to describe, and which I long in vain to communicate to you. The old work is generally distinguishable from the modern additions; indeed, no pains have been taken to copy exactly the antique. Of the principal columns, four have Corinthian, and four Composite capitals; and this seems to have been originally the case, though the columns themselves are now, some of granite, and some of stuccoed brickwork. The groined vaulting is whitewashed, and has no ornament, except the brass knobs to which the lamps were anciently suspended. The ground of the church has been raised, because it was damp; we wonder why it should not rather have been drained, since the situation is elevated. The present want of height is a sensible defect; it does not, I think, exceed two-thirds of the width, and perhaps was not originally more than three-fourths. I would by no means attempt in this style of architecture to emulate the proportionate height of the Gothic, whose peculiar character requires great elevation; but the height ought not to _appear_ less than the width, and therefore should probably a little exceed it. If it is more than this, it should be sufficiently increased to make the height the characteristic of the room, the dimension which first impresses itself on the observer. Intermediate proportions would be inferior to either; it is not in architecture alone that half measures fail. From the church we may visit the convent, both for its ancient fragments, and its modern architecture. It contains a large square, of which the centre is adorned by some noble cypresses, and the surrounding cloisters are said to be the production of M. Angelo. The disposition of the kitchen chimney in this convent pleased me much; it is a deep recess lighted by two windows, and having the stoves placed along the middle. Besides the general flue to take off the steam, &c. there are some smaller ones for the smoke.