Sheraton, Thomas; Bensley, Thomas; Mathews, James; Bensley, Thomas [Oth.]; Mathews, James [Oth.]; Terry, George [Oth.]; Jordan, Jeremiah Samuel [Oth.]; Wayland, L. [Oth.]: The Cabinet-Maker And Upholsterer's Drawing-Book: In Three Parts (London: Printed For The Author, By T. Bensley; And Sold By J. Mathews ... C. Terry ... J.S. Jordan ... L. Wayland ... And By The Author, 1793)

of the picture or board we draw on, there can be no opportunity
to lay on the fides of the fquare any further; we muft again there-
fore reduce the length of the point of diftance to b, which is only
one fourth of the whole diftance; in proportion to which we muft
alfo reduce the fcale on the ground line to one fourth of the fide
of the fquare, as i, 2; or, which is the fame thing, divide the
fpace 5, 6, into two equal parts, and from 6,0, 5 draw lines to 3,
and three more fquares will be cut off on the vifual line 3, as
is evident from the figure. '
Obfervations.—The truth of the reprefentation of the three
laft fquares will appear, if the whole fpace between 3 and 6 be
placed from 6 to 9. Draw then from 9 a line to which will
cut the vifual in the fame points as before, when a line was
drawn from 6 to b.
The advantage of this problem is very much experienced in
the reprefentation of long ranges of buildings, fuch as the in-
ternal views of ftreets; in which cafe it is impoflible to find room
i on the ground line for the full meafurement of each front, not
even when we have a very large board to draw on. I remember
to have been very much embarrafled myfelf in drawing the
view of a long ftreet, till I was informed of the above methods.

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