reason that it is unexposed to the sun's course,
and hence it always keeps cool, and makes the use of the rooms both
healthy and agreeable. Similarly with picture galleries, embroiderers'
work rooms, and painters' studios, in order that the fixed light may
permit the colours used in their work to last with qualities unchanged.

CHAPTER V

HOW THE ROOMS SHOULD BE SUITED TO THE STATION OF THE OWNER

1. After settling the positions of the rooms with regard to the quarters
of the sky, we must next consider the principles on which should be
constructed those apartments in private houses which are meant for the
householders themselves, and those which are to be shared in common with
outsiders. The private rooms are those into which nobody has the right
to enter without an invitation, such as bedrooms, dining rooms,
bathrooms, and all others used for the like purposes. The common are
those which any of the people have a perfect right to enter, even
without an invitation: that is, entrance courts, cavaedia, peristyles,
and all intended for the like purpose. Hence, men of everyday fortune do
not need entrance courts, tablina, or atriums built in grand style,
because such men are more apt to discharge their social obligations by
going round to others than to have others come to them.

2. Those who do business in country produce must have stalls and shops
in their entrance courts, with crypts, granaries, store-rooms, and so
forth in their houses, constructed more for the purpose of keeping the
produce in good condition than for ornamental beauty.

For capitalists and farmers of the revenue, somewhat comfortable and
showy apartments must be constructed, secure against robbery; for
advocates and public speakers, handsomer and more roomy, to accommodate
meetings; for men of rank who, from holding offices and magistracies,
have social obligations to their fellow-citizens, lofty entrance courts
in regal style, and most spacious atriums and peristyles, with
plantations and walks of some extent in them, appropriate to their
dignity. They need also libraries, picture galleries, and basilicas,
finished in a style similar to that of great public buildings, since
public councils as well as private law suits and hearings before
arbitrators are very often held in the houses of such men.

3. If, therefore, houses are planned on these principles to suit
different classes of persons, as prescribed in my first book, under the
subject