The cabinet-maker and upholsterer's drawing-book : in four parts (1802)
Sheraton, Thomas, 1751-1806 · London : Printed by T. Bensley ... for W. Baynes · leaf 96
thefe I, a, b, c, &c. be equal to the refpeftive difference of each ftep to eachother. This is clearly proved by Fig. A, which is fuppofed to be a drawingof the ladder at full fize, only for the fake of demonftrating the truth of themethod; for we fay that the line 1.2, Fig. B, is equal to the… … rs/^r„/,.„./r/ Jit////4i/,i^//,-.l,f ,/)t;/.v/y 17 J>rn:_ J„nr / /^p// r,r ,y.i;^^. ( 71 ) tween the firft and laft ftep, which is twice 1.2 at Fig. A; fo alfo the per-pendicular line a at Fig. B is equal twice a at Fig. A; and confequently theremaining ones are equal to the difference of each…
