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 112
Fig. 28 A transverse section to shewthe vascular cylinder of theroot of the spinach, c issomewhat older than a and b. Finally, an attempt may be made to draw in a moredetailed fashion as in Figure 28c. Here the thickness ofthe cells of the wood is represented by broad black lines,the middle…
Engraving -- Printing · Illustration of books · Photomechanical processes
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
