An introduction to perspective : practical geometry, drawing and painting : a new and perfect explanation of the mixture of colours, with practical directions for miniature, crayon, and oil painting : in a series of familiar dialogues between the author's children, and letters addressed to his pupils : illustrated with numerous wood engravings, from drawings by John Hayter ..., and coloured plates (1845)
Hayter, Charles, 1761-1835, Hayter, John, 1800-1895 · London : Samuel Bagster and Sons ... · leaf 59
read it at any rate, and can refer to our problems, as we do to our dictionaries and maps occasionally. George. And questions which will often occur you will remember, as well as you do your language. Whenever you would make a small copy of a picture, divide the original by whole numbers, so that… … termined. Ann. Has the triangular figure (fig.73), any other use than what you explained in No. XXIV.? George. One of its angles is made a correct right angle, for the purpose of drawing right angles without the geometrical process. John. Then why did you not explain this before? We could have done…
Perspective · Drawing · Color · Painting
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-90-155.webp)
