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)
^l \ fj s/l| L-iP- K t> B ■~^. A ^M. -■i^^^^r;s^^g m^ Bl- E F i- I … 11/^ 1^7«/fe, PLATE XL. 119 2nd. From the centre H and the springing lines ofthe arch, and from the corners A and M draw rays tothe point of sight. 3rd. From A and M set off the projection of the ribs,and draw rays from the points so set off to the point ofsight. 4th. Transfer the measurements of…
