We find in Greece three distinct manners, distinguished largely by the mode in which the column is dealt with. These it would be quite consistent to call "styles," were it not that another name has been so thoroughly appropriated to them, that they would hardly now be recognised were they to be spoken of as anything else than "orders." The Greek orders are named the Doric, Ionic, and Corinthian. Each of them presents a different series of proportions, mouldings, features, and ornaments, though the main forms of the buildings are the same in all. The column and its entablature (the technical name for the frieze, architrave, and cornice, forming the usual superstructure) being the most prominent features in every such building, have come to be regarded as the index or characteristic from an inspection of which the order and the degree of its development can be recognised, just as a botanist recognises plants by their flowers. By reproducing the column and entablature, almost all the characteristics of either of the orders can be copied; and hence a technical and somewhat unfortunate use of the word "order" to signify these features only has crept in, and has overshadowed and to a large extent displaced its wider meaning. It is difficult in a book on architecture to avoid employing the word "order" when we have to speak of a column and its entablature, because it has so often been made use of in this sense. The student must, however, always bear in mind that this is a restricted and artificial sense of the word, and that the column belonging to any order is always accompanied by the use throughout the building of the appropriate proportions, ornaments, and mouldings belonging to that order. The origin of Greek architecture is a very interesting subject for inquiry, but, owing to the disappearance of almost all very early examples of the styles, it is necessarily obscure. Such information, however, as we possess, taken together with the internal evidence afforded by the features of the matured style, points to the influence of Egypt, to that of Assyria and Persia, and to an early manner of timber construction--the forms proper to which were retained in spite of the abandonment of timber for marble--as all contributing to the formation of Greek architecture.