The British drawing-book : or, the art of drawing with accuracy and beauty, containing a series of progressive lessons on drawing landscape scenery, marine views, architecture, animals, the human figure, &c. &c. also, a complete system of practical perspective, illustrated with numerous practical subjects (1845)
Whittock, N. (Nathaniel), 1791-1860 · London : Published for the proprietor · leaf 78
PROGRESSIVE DRAWING-BOOK. 29 SO degrees would be much easier to ascend, than one placed at an angle of 50 degrees ; and that if it was anangle of 40 degrees, he could not ascend a plain board, but must have the assistance of steps, as in the ladder,which may be ascended with safety at an angle of…
Drawing
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Perspectiva; hierinnen auffs kürtzte beschrieben, mit Exempeln eröffnet vnd an Tag gegeben wird, ein newer besonder kurtzer, doch gerechter vnnd sehr leichter Weg, wie allerley Ding, es seyen Corpora, Gebew, oder was möglich zuerdencken vnd in Grund zulegen ist, verruckt oder vnuerruckt, frener in die Perspectyf gebracht werden mag, on einige vergebliche Linie, riss vñ Puncten, [et]c. dergleichen Weg bisshero noch nit bekant gewesen (1571)](https://img.insideoutlibrary.com/img/200/ia-perspectivahieri00lenc-51-27.webp)
