University of Virginia Library

447. ARCHITECTURE, Porticos.—

A
portico may be from five to ten diameters


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of the column deep, or projected from the
building. If of more than five diameters,
there must be a column in the middle of each
flank, since it must never be more than five
diameters from center to center of column.
The portico of the Maison quarrée is three
intercolonnations deep. I never saw as much
to a private house.—
To James Madison. Ford ed., vi, 327.
(1793)