DOI Page / Citation link:
https://doi.org/10.11588/diglit.62828#0061
metrical dimenfions laid down on the ground, or other fcale
lines adapted for that purpofe. So that no perfon, however ig-
norant of Perfpeftive, fhall be liable to miftake the Perfpeftive
for the geometrical meafurements, or be at any lofs to know
the general fizes of fuch pieces as fhall be introduced*. And
we may fay, with refpedt to changes of faihions, that he who
is properly acquainted with lines, verfed in Perfpedtive, and
fufficiently pradtifed in ornamental drawing, will, from a few
hints, be able, at any time, to turn his hand to any fafhion,
Laftly, I would entreat leave to remark, that, as the publi-
cation of this work will be attended with very great expence,
the accompliihment of my defign will principally depend upon
* The Cabinet-maker’s Book of Prices advertifes thofe who are ignorant of PerfpeCtive
to take care how they apply their compafies to the defigns, left they fhould make any miftake
about the fizes • But I do not fee how this can be avoided by fuch as are ignorant of the
art, fince there are no directions given how to apply them, nor neceflary fcales for the
purpofe of obtaining the true meafurements. They have given a fcale for the front of their
defigns, which ferves to give the height and length of fuch of them as are drawn geometrically
in front, but can be of no fervice in finding the width of a piece of work drawn in per-
ipeCtive ; becaufe its apparent breadth is much narrower than the real or geometrical one.
And it maybe further obferved, that we cannot determine the height of a book-cafe merely by a
ground fcale, when the book-cafe is drawn in perfpeCtive, becaufe then the top part recedes
or falls back from the front, it is therefore in appearance lower than the real height. For
which caufe, if any perfon was to apply the compafies for the height of a piece of work of
the above kind, they muft be totally deceived refpeCting its height. Therefore, in the fol-
lowing work, every difficulty of this kind {hall be obviated, and proper directions given how
to avoid thefe errors, and to apply the compafies, fo as to obtain every neceflary dimenfion.
the
lines adapted for that purpofe. So that no perfon, however ig-
norant of Perfpeftive, fhall be liable to miftake the Perfpeftive
for the geometrical meafurements, or be at any lofs to know
the general fizes of fuch pieces as fhall be introduced*. And
we may fay, with refpedt to changes of faihions, that he who
is properly acquainted with lines, verfed in Perfpedtive, and
fufficiently pradtifed in ornamental drawing, will, from a few
hints, be able, at any time, to turn his hand to any fafhion,
Laftly, I would entreat leave to remark, that, as the publi-
cation of this work will be attended with very great expence,
the accompliihment of my defign will principally depend upon
* The Cabinet-maker’s Book of Prices advertifes thofe who are ignorant of PerfpeCtive
to take care how they apply their compafies to the defigns, left they fhould make any miftake
about the fizes • But I do not fee how this can be avoided by fuch as are ignorant of the
art, fince there are no directions given how to apply them, nor neceflary fcales for the
purpofe of obtaining the true meafurements. They have given a fcale for the front of their
defigns, which ferves to give the height and length of fuch of them as are drawn geometrically
in front, but can be of no fervice in finding the width of a piece of work drawn in per-
ipeCtive ; becaufe its apparent breadth is much narrower than the real or geometrical one.
And it maybe further obferved, that we cannot determine the height of a book-cafe merely by a
ground fcale, when the book-cafe is drawn in perfpeCtive, becaufe then the top part recedes
or falls back from the front, it is therefore in appearance lower than the real height. For
which caufe, if any perfon was to apply the compafies for the height of a piece of work of
the above kind, they muft be totally deceived refpeCting its height. Therefore, in the fol-
lowing work, every difficulty of this kind {hall be obviated, and proper directions given how
to avoid thefe errors, and to apply the compafies, fo as to obtain every neceflary dimenfion.
the