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WHICH IS DEMONSTRATED
. WHICH IS DEMONSTRATED '^J
/fay FROM ITS FIRST PRINCIPLES^- "0^
EVERY THING THAT IS USEFUL AND CURIOUS
IN THAT ART IS FULLY CONSIDERED AND
Four new and very concife Methods to determine the Areas of
Right-lined Figures Arithmetically, or by Calculation, as
well as the Geometrical ones heretofore treated of;
with two other new Geometrical Methods much
. . more accurate and ready than any of the
former, never before made public.
The Method of Tracing Defaced Mearings from the
Very ufeful to Perfons who have any Property in
Land, to Lawyers in controverted Surveys,
and to Practical Surveyors.
The whole illuftrated with Copperplates.
THE . FIFTH EDITION.
By ROBERT GIBSON,
Teacher of the Mathematics.
Pr1nted By P. WOGAN, No. 23, Old-br1dge.