articular what choice ought to
be made of the Seat where we ought to Build, as to Health and
Convenience; after he speaks of the Foundations and of the Building of
Fortifications, and the Form of Towers and Walls of Cities, he dilates
himself upon the Air and Healthiness of the Situation.

In the Second Book, he speaks of the Original of Architecture, and what
were the first Habitations of Mankind; after he treats of the Materials,
_viz._ of Brick, Sand, Lime, Stones, and Timber: After which he treats
of the different Methods of laying, binding, and Masonry of Stones. He
Philosophizes upon their Principles, and upon the Nature of Lime, upon
the choice of Sand, and the time of cutting of Wood.

The Third Book treats of the Proportion of the Temples, and of seven
sorts of them which are those called _Antes_, _Prostyle_,
_Amphiprostyle_, _Periptere_, _Pseudiptere_, _Diptere_ and _Hypaethre_.
After he speaks of the Different spaces that ought to be betwxit every
Pillar, to which he gives the Five Names following, (which in the latter
Part of this Book shall be more fully explained, as well as divers Terms
of Art) _viz._ _Pycnostyle_, _Systyle_, _Diastyle_, _Araeostyle_ and
_Eustyle_. After that, he gives in particular the Proportions of the
_Ionick_ Order, and demonstrates that it has a Proportion with Humane
Bodies.

The Fourth gives the Proportion of the _Corinthian_ and _Dorick_ Orders
for Temples, with the Proportions of all the Parts that compose them.

The Fifth treats of Publick Fabricks, _viz._ of _Market-places_,
_Theatres_, _Palaces_, _Baths_, _Schools_ for Sciences, and _Academies_
for Exercises, and in Conclusion, of _Sea-Ports_; and after occasionally
discourses at large upon Musick, because, speaking of Theatres, he gives
an account how the Ancient Architects, were in some places of the
Theatre wont to place Vessels of Brass to serve for several sorts of
tunable Echo's, and augmenting the Voice of the Comedians.

In the Sixth he teaches what were the Proportions and Forms of private
Houses among the Greeks and Romans, as well in the City as Country; and
describes all the parts of the House, _viz._ the Courts, Porches,
Halls, Dining Rooms, Chambers, Cabinets and Libraries.

In the Seventh he treats of the manner of making use of Mortar for
Plaster and Floors; how Lime and the Powder of Marble ought to be
prepared to make Stuck. He speaks likewise of the Ornaments that are
common to all sorts of Buildings,