A text book of geometrical drawing : abridged from the octavo edition : for the use of schools in which the definitions and rules of geometry are familiarly explained, the practical problems are arranged from the most simple to the more complex, and in their description technicalities are avoided as much as possible : with an introduction to isometrical drawing : and an essay on linear perspective and shadows ... (1849)
SCALES OF EQUAL PAJXTS Fig, 3 . lO 9 8 765432.1 O mm I I I H I I O I 2 4 5 6 7 L5 Fig. 4 A. 0 1 2 3 4 5 6 7 A. / Y L \. L \; \ Fiif. 5 … 10 987 6S432 PLATE IX. 39 use a scale of one and a half inches to the foot; thisgives one-eighth of an inch to an inch, which is equalto one-eighth of the full size. This is very convenient,as every workman has a scale on his rule, which hecan apply to the drawing with facility. Scales aregenerally…
