also be put into it; and as all figures on the same plane, no matter how irregular they may be, are bounded by straight lines or curves, (or the figure may be called mixtilineal,) it is evident that the methods | for these two conjoined will be the mode of sroceeding in general cases, | | 4. To put… … | ~ drawn, they will touch the curve in two points, to which, if lines be | | drawn from p, they will form the slant sides of the cone. In fig. 5, eb is the representation of || | the apparent size of the diameter of the circle, found by drawing lines to represent visual rays || | to touch the…
Furniture design · Cabinetwork
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.