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)
rallelograms and diago-nals in perspective at 0, P. V. W and at Q. W. R. X,and draw the curves through the points as in the lastdiagram. 4th. From i where E, D cuts D. 5^, draw a horizon-tal line cutting B. S in A, and from h erect a perpen-dicular cutting Jkf. S in k. 5th. From F, the centre of… … PLATE XLI. 123 Note.—^The backs of the side arches are found by the samemethod as the fronts of those arches. The lines are omitted toavoid confusion. The projecting cap in this diagram is constructed in the samemanner as the caps of the pillars in Plate 39. PLATE XLII. APPLICATION OF THE CIRCLE…
