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 113
slightly in thickness,but this is to a great extent masked by the representationof the cell contents, which consist entirely of dots in thecase of the protoplasm, whilst the nuclei are represented 69 RELIEF PRINTING by dark ovals—black relieved with small white areas. By-varying the size of the… … Fig. 29 Fig. 29, which illustrates a stage in the division of anucleus, was drawn with black crayon on a rough-grainedpiece of Whatmans water-colour paper. The cytologistwill, doubtless, criticize its coarseness, but it may be men-tioned that the roughest paper at hand was designedlyemployed in…
Engraving -- Printing · Illustration of books · Photomechanical processes
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