今の時代、色を指定することは簡単だ。16進数でもRGB値でも、特定のペイントブランドの在庫番号でも、パントンの名前でも、ある色を定義づける正確な方法は誰もが知っている。Werner's Nomenclature of Colours（ウェルナーの色彩専門用語）は、言葉が像の代わりとなる以前の時代に遡った、再版本である。エイブラハム・ウェルナーの方法を使った美術講師が監修を務めた本書は、色見本や自然界で見られる場所の説明と共に、ベルリンブルーやサップグリーンなど様々な色にビビッドな名前が付けられている。ビーグル号での自身の冒険の参考として使っていたチャールズ・ダーウィン氏の言葉など、長年に渡る数々の貴重な投機も本書では証明している。
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