The principal object it was sought to attain in writing these articles, was to raise a discussion on the moot points which I hoped would have tended towards settling them. If any competent archæologist had come forward, and could have pointed out the weak point in the argument, he would have rendered a service to the cause; or if any leading authority had endorsed the views advocated in these articles, the public might have felt some confidence in their correctness. This expectation has not been fulfilled, but they have probably not been without their use in preparing the minds of others for the views advanced in them, while, as no refutation has appeared, and no valid objection has been urged against them, either in public or in private, I may fairly consider myself justified in feeling considerable confidence in their general correctness. Till antiquaries are agreed whether the circles are temples or tombs or observatories, whether the dolmens are monuments of the dead or altars for sacrificing living men, and whether the mounds are tombs or law courts, it seems impossible, without arguing every point, to write anything that will be generally accepted. Still more, till it is decided whether they are really prehistoric or were erected at the periods where tradition and history place them, it seems in vain to attempt to explain in a simple narrative form either their age or uses. As a necessary consequence of all this confusion, it is scarcely practicable at present to compile a work which shall be merely a Historical and Statistical account of the Rude Stone Monuments in all parts of the world; but till something is settled and agreed upon, we must be content with one which to a certain extent, at least, takes the form of an argument. Many of its pages which would have been better employed in describing and classifying, are occupied with arguments against some untenable theory or date, or in trying to substitute for those usually accepted, some more reasonable proposition. Notwithstanding this, however, it is hoped that this work will be found to contain a greater number of new facts regarding Rude Stone Monuments, and of carefully selected illustrations extending over a larger area, than have yet been put together in a volume of the same extent. * * * * *