This Handbook is intended to give the visitor to Rome full information about the Christian side of its his tory, about Roman churches, ceremonies, and customs, which does not fall within the scope of such an excel lent Handbook as that oi Messrs. Murray's general Guide. It was to have formed one volume, but the matter gradually exceeded all limits; and it is now hoped that this little series of books (of which the present is much the largest) may prove as convenient, dealing as each volume will do, with a subject complete in itself. We cannot hope that among so much detail we have been able to avoid all error nor that we have always made the same choice as all our readers would have done, as to what pieces of information to give, and what to reluctantly withhold. When a choice has had to be made, we have elected to tell what is less generally known.