Although this little treatise is limited to the consideration of Ancient and Classic Architecture, we may be allowed to explain briefly what is to be understood by Architecture in its quality of one of the so-called Fine Arts, if only to guard against confused and erroneous notions and misconceptions. It will therefore not be deemed superfluous to state that there is a wide difference between Building and Architecture,—one which is apparently so very obvious that it is difficult to conceive how it can have been overlooked, as it generally has been, by those who have written upon the subject. Without building we cannot have architecture, any more than without language we can have literature; but building and language are only the _matériel_,—neither, the art which works upon that _matériel_, nor the productions which it forms out of it. Building is _not_ a fine art, any more than mere speaking or writing is eloquence or poetry. Many have defined architecture to be the art of building according to rule: just as well might they define eloquence to be the art of speaking according to grammar, or poetry the art of composing according to prosody. Infinitely more correct and rational would it be to say that architecture is building greatly refined upon,—elevated to the rank of art by being treated _æsthetically_, that is to say, artistically. In short, architecture is building with something more than a view to mere utility and convenience; it is building in such a manner as to delight the eye by beauty of forms, to captivate the imagination, and to satisfy that faculty of the mind which we denominate taste. Further than this we shall not prosecute our remarks on the nature of architecture, but come at once to that species of it which is characterized by the Orders.