red, orange and yellow. with a little of the green and but a small ({uantity of the I blue and violet. The sister colour, Purpurin, which dyes somewhat bluer shades than ' Alizarine, has the absorption I >ALI ZARIN IN ALCOHOL Fig. 27. spectra shown in Fig. 28. Cochineal solutions, Fig. 29, show the… … PURPURINE IN ALCOHOL Fio. 28. and similar shades, which often pass under the term of tertiary colours. An examination of the absorption spectra of such shades solves the difficulty. For instance, Bismarek Brown, which dyes cotton in reddish-brown or orango-brown shades, has a spectrum which shows…
Color
Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
