The essentials of illustration, a practical guide to the reproduction of drawings & photographs for the use of scientists & others (1915)
Hill, Thomas George, 1876- · London, W. Wesley & Son · leaf 120
•591 -50* -417 414 414- ^9 *r•40. ■*°^ 4» 40a 401400 5»6•^•*405 •589 •*W.579 »»8 ^•5&0 ..7» MO- •377 -^^ • 57r -579■58o •V3 a Contoured. b Spot-levels. … Fig. 36 These three figures illus-trate in three different waysthe varying levels of a pieceof ground surveyed by Prof.F. W. Oliver and Mr. A. G.Tansley. c Layered since it is scientifically the most correct method, inasmuchas when properly drawn the form of the hill is shewnexactly; further,…
Engraving -- Printing · Illustration of books · Photomechanical processes
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Rudiments of the art of building : represented in five sections [...] for the use of architects, builders, draghtsmen, machinists, engineers and mechanics (1853)](https://img.insideoutlibrary.com/img/200/ia-rudimentsofartof00bull-60-25.webp)
