330 
COLOUR IN NATURE 
HXcker, V.—“ Untersuchungen iiber die Zeichnung der Vogel- 
federn,” Zool. Jahrbiich, iii. (1888), pp. 309-316, 1 pi. 
Haliburton, W. D.—“On the Blood of Decapod Crustacea,” 
Jour. Physiol, vi. (1883), PP- 300-335, 1 pi. Pigment of Hypoderm 
of Lobster. 
Harmer, Sidney J.—“ On the Nature of the Excretory Processes 
in Marine Polyzoa,” Q. J. M. S. vol. xxxiii. (1891), pp. 123-167, 2 
pis. Formation of Brown Body. 
Herdman, W. A.—“ Note on a New British Echiuroid Gephyrean, 
with Remarks on the Genera Thalassema and HamingiaJ Q. J. M. S. 
xl. (1898), pp. 367-384, 2 pis. Re Green Pigment. 
Hopkins, F. Gowland—“P igment in Yellow Butterflies,” 
Absl. Proc. Chem. Soc. vol. v. p. 117 (1889). See also Nature, vol. 
xl- p- 335 > an( i letter in Nature, vol. xlv. pp. 197, 198 (1891). 
“ Pigments of Lepidoptera,” Nature, vol. xlv. p. 581 (1892). “ The 
Pigments of the Pierkke,” Proc. Roy. Soc. London, vol. lvii. pp. 5, 6 
(1894); and Phil. Trans, clxxxvi. (1896), pp. 661-682. 
Johnson, H. P.—“A Contribution to the Morphology and 
Biology of the Stentors,” Journ. Morphol. viii. (1893), PP- 468-552, 
4 pis. Pigment of S. ccerulea. 
Jones, E. Lloyd—“ Observations on the Specific Gravity of the 
Blood,” Journ. Physiol, vol. xii. (1891), pp. 299-346, 4 pis. 
Relation to Colour of Skin and Iris. 
Karawaiew, W. — “ tjber Aulacantha scolymanthaf Zoolog. 
Anzeig. xviii. (1895), PP- 293-301. Function of Phaeodia. 
Keeble, F. W.—“The Red Pigment of Flowering Plants,” Sci. 
Progress, New Series, vol. i. (1897), pp. 406-423. Abstract of Obser¬ 
vations of Stahl and Others. 
Keeler, Charles—-“ Evolution of the Colours of North American 
Land-birds,” P. Calif. Ac. iii. (1893), xii +361 pp. 19 pis. 
Kerschner, Ludwig—“ Zur Zeichnung der Vogelfeder,” Zeitschr. 
Wiss. Zool. (1886). 
Knauthe, Karl—“ Erfahrungen fiber das Verhalten von Am- 
phibien u. Fischen gegenfiber der Kalte,” Zool. Anzeig. xiv. (1891), 
pp. 109-115. Change of Colour in Cold. 
Kolliker, A.—“ Ueber die Entstehung des Pigments in den 
Oberhautgebilden,’’ Zeit. Wiss. Zool. xlv. (1887), pp. 713-717, 2 pis. 
Krukenberg, C. Fr. W.— Vergleichend-physiologischen Studien, 
Heidelberg, 1880-1882. Contain numerous Papers on Animal 
Pigments. Grundzuge einer vergleichenden Physiologie der Farbstojfe u. 
derFarben, Heidelberg, 1884, PP- 85-184. With copious Bibliography. 
Kukenthal, Willy—“ Ergebnisse einer Zoologischer Forsch- 
ungsreise in den Molukken u. in Borneo,” Abhand. Senckenberg. Nat. 
Ges. Frankfurt a. M. xxii. (1896). Re Ueber die Fdrbung der Tiere 
tmter spezieller Beriicksichtigung der tropischen Formen, pp. 53-62. 
Langerhans, Paul—“D ie Wurmfauna von Madeira,” iv., Zeit. 
Wiss. Zool. vol. xl. (1884), pp. 247-285, 3 pis. Colours of Various Forms. 
