Natural colourinc matters and their anal
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Robinson, R.
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Article
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1933
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Wiley (John Wiley & Sons)
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Altlioitgli the siiliject, ~rliich 1 Itnvc sclrctctl for lily i i t l t l ~i ~~~ is neccsiiirily ~o~iic\\.itiit t~cltniciil, it occurrcci to nio that. the ~~r o i ) l c n ~ of flower coloiir is of gcncrnl intcwst, niid th pist. of wlint 1 liii\-c to say is n contribiitiou to tlic iilis\\.t\*r to tli