Note 114 — Chapter VIII · Characters as Adaptive and Specific (continued).
Reading edition
See especially, Koch, Die Raupen und Schmetterling der Wetterau, and Die Schmetterling des Südwestlichen Deutschlands, whose very remarkable results of numerous and varied experiments are epitomized by Eimer, Organic Evolution, Eng. Trans. pp. 147-153; also Poulton, Trans. Entom. Soc. 1893.