8 
Color Standards and Nomenclature. 
proper line were suitably relocated the two component 
colors were correspondingly readjusted on the color- 
wheel and each faulty disk corrected (or a new one 
painted) until it exactly matched the required combina¬ 
tion. The scales representing the tints and shades of 
each color, and also the gray or broken colors were simi¬ 
larly determined by corrected curves.* 
By the method adopted of running each of the thirty- 
six spectrum hues through a scale of tints and shades, 
and repeating the combination through several series 
modified by increasing increments of neutral gray, prac¬ 
tically the entire possible range of color variation is 
covered,t rendering it an easy matter to locate in the 
plates, either among the colors actually shown or in an 
intermediate space, any color which it is desired to 
match; and where short distinctive names have not been 
found (their place being, tentatively, supplied by com¬ 
pound names), as, necessarily, must often be the case, 
any color or intermediate between any two colors, either 
as to hue, tint, or shade, may be readily designated by 
the very simple system of symbols (numerals and let¬ 
ters) employed, t 
In order to designate any color for which a satis¬ 
factory name cannot be found, or one not represented 
on the plates, it is only necessary to proceed as follows : 
Suppose the color in question is nearest 1 on Plate I ; 
say, for example, is intermediate in hue between 1 
(spectrum red) and 3 (scarlet-red), or in other words if 
represented in color its position would be in the uncol- 
*The percentages are given in tables on pages 23 and 25. 
f That is to say, theoretically. Unfortunately it seems to be beyond the colorists’ 
skill to reproduce true shades of the pure colors, all showing a more or less decided 
admixture of gray, resulting in a series of broken or dull shades. (See pages 23 
and 24.) 
J Although only 1115 different colors are actually shown on the plates the sys.tem 
is really equivalent to the presentation of considerably more than 4000 distinguish¬ 
able and designatable colors. 
