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                                  Plate XV.
  Is the elevation of the fire-place, and part of the book-case for the Eliza-
bethan design in Plate XIII. A looking-glass in an appropriate carved frame
may be introduced over the mantel-piece, or an old portrait or painting,
if
thought more characteristic.
   Although the information possessed by the ancients on all subjects con-
nected with the sciences and manufactures was much less extensive and
accurate than that possessed in the present day, it was more completely at
the command of those whom       it concerned.   The Roman architect was not
only a good draftsman, thoroughly acquainted with the science of construction,
and able to direct the workmen, but was expected to be well informed on
all those sciences which had any relation to the principles or practice of
his
profession.   It is by fixing a high  standard of excellence as the object
of
ambition, that a man is able to reach distinction and attain a superiority
over
others who have pursued the same or a similar course of studies.      The
man
who aims at a general knowledge of his profession, and whose object is to
perform his various duties with as little trouble as possible, will never
have
more than a superficial acquaintance with the various subjects which come
within the range of his pursuits.      To him   there would be no interest
in
inquiring how his materials were produced; to be able to apply them would,
in his estimation, be all that could be required of any one, and collateral
information he would consider unnecessary.       If he were required to build1,
he would be satisfied with the accidental character of any stone which might
be recommended to his notice, and without personal investigation, employ
it
for his purposes.    If he desired to paint a house or apartment, he would
                                       I