156 Cf. Loeb, Untersuchungen zur physiol. Morphologie der Thiere, 1892; also Experiments on Cleavage, J. of Morph. VII, p. 253, 1892; Zusammenstellung der Ergebnisse einiger Arbeiten û¥ber die Dynamik des thierischen Wachsthum, Arch. f. Entw. Mech. XV, 1902ã3, p. 669; Davenport, On the RûÇle of Water in Growth, Boston Soc. N. H. 1897; Ida H. Hyde, Am. J. of Physiol. XII, 1905, p. 241, etc.
157 Pflû¥gerãs Archiv, LV, 1893.
158 BeitrûÊge zur Kenntniss der WachstumsvorgûÊnge bei Amphibienembryonen, Bull. Acad. Sci. de Cracovie, 1908, p. 783; cf. Arch. f. Entw. Mech. XXVIII, p. 160, 1909; XXXIV, p. 489, 1912.
159 Fehling, H., Arch. fû¥r Gynaekologie, XI, 1877; cf. Morgan, Experimental Zoology, p. 240, 1907.
160 HûÑber, R., Bedeutung der Theorie der LûÑsungen fû¥r Physiologie und Medizin, Biol. Centralbl. XIX, 1899; cf. pp. 272ã274.
161 Schmankewitsch has made other interesting observations on change of size and form, after some generations, in relation to change of density; e.g. in the flagellate infusorian Anisonema acinus, Bû¥tschli (Z. f. w. Z. XXIX, p. 429, 1877).
162 These ãFezzan-worms,ã when first described, were supposed to be ãinsectsã eggsã; cf. Humboldt, Personal Narrative, VI, i, 8, note; Kirby and Spence, Letter X.
163 Cf. Introd. û lãûˋtude de la mûˋdecine expûˋrimentale, 1885, p. 110.
164 Cf. Abonyi, Z. f. w. Z. CXIV, p. 134, 1915. But Frûˋdûˋricq has shewn that the amount of NaCl in the blood of Crustacea (Carcinus moenas) varies, and all but corresponds, with the density of the water in which the creature has been kept (Arch. de Zool. Exp. et Gûˋn. (2), III, p. xxxv, 1885); and other results of Frûˋdûˋricqãs, and various data given or quoted by Bottazzi (Osmotischer Druck und elektrische LeitungsfûÊhigkeit der Flû¥ssigkeiten der Organismen, in Asher-Spiroãs Ergebn. d. Physiologie, VII, pp. 160ã402, 1908) suggest that the case of the brine-shrimps must be looked upon as an extreme or exceptional one.
165 Cf. Schmankewitsch, Z. f. w. Zool. XXV, 1875, XXIX, 1877, etc.; transl. in appendix to Packardãs Monogr. of N. American Phyllopoda, 1883, pp. 466ã514; Daday de Deûˋs, Ann. Sci. Nat. (Zool.), (9), XI, 1910; Samter und Heymons, Abh. d. K. pr. Akad. Wiss. 1902; Bateson, Mat. for the Study of Variation, 1894, pp. 96ã101; Anikin, Mitth. Kais. Univ. Tomsk, XIV: Zool. Centralbl. VI, pp. 756ã760, 1908; Abonyi, Z. f. w. Z. CXIV, pp. 96ã168, 1915 (with copious bibliography), etc.