BIBLIOGRAPHY 265 



Page of text 

 on which 

 reference 

 is made 



296. 1881. Meehan. Th., 'Color in Autumn Leaves,' Proc. Acad. 



Nat. Sci., Philadelphia, Pa., 1881, pp. 454-456. 



Description of plants producing anthocyanin in salt 

 marshes of New Jersey. Discussion as to the greater 

 production of anthocyanin in American as compared with 

 European species of the same genus. No definite con- 

 clusion as to causes. 



297. 1882. CosteiUS, J. C., 'Seasonal Order in Colours of Flowers,' 



Nature, London, 1882, xxv, pp. 481-482. 



Observations on the development of colour in flowers 

 and fruits in the dark. Conclusion that formation of 

 pigment largely depends upon the supply of chromogen 

 at the time of darkening. For production of chromogen, 

 light is necessary. 



298. *Mtiller-Thurgau, H., 'Ueber den Einfluss der Belau- 

 bung auf das Reifen der Trauben,' Weinbaucongress zu 

 Diirkheim a. d. H., 1882. 



Coloration of fruits of Vitis takes place in the 

 dark. p. 88 



299. Schunck, E., 'Remarks on the Terms used to denote 

 Colour, and on the Colours of Faded Leaves.' Chem. News, 

 London, 1882, XT.V, pp. 17-20. 



Short, somewhat popular, account of colour in autumnal 

 leaves. 



300. 1883. Heckel, E., 'Sur I'intensite du coloris et les dimensions 



considerables des fleurs aux hautes altitudes,' Bui. soc. hot., 

 Paris, 1883, xxx, pp. 144-154. 



High mountain plants owe intense colour to strong 

 insolation rather than to insect visitation. p. 84 



301. Kraus, C., 'Beitrage zur Kenntniss des Verhaltens der 

 leicht oxydablen Substanzen des Pflanzensaftes,' Ber. D. 

 hot. Ges., Berlin, 1883, I, pp. 211-216. 



Development of pigment in Dahlia tubers as a result of 

 oxidation. 



302. 1 884. Sorby, H., 'On the Autumnal Tints of Foliage,' Nature, 



London, 1884, xxxi, pp. 105-106. 



Slight note on autumnal coloration. 



303. 1885. Beyerinck, M. W., 'Die Galle von Cecidomyia Poae an 



Poa nemoralis. Entstehung normaler Wurzeln in Folge 

 der Wirkung eines Gallenthieres,' Bot. Zlq., Leipzig, 1885, 

 XLin, pp. 305-315, 321-331. 



Coloured roots formed in the region of an injury caused 

 by gall insect. p. 28 



304. 1886. Sorauer, P., Handbuch der Pflanzenkranklieiten, Berlin, 



1 886, Bd T, p. 324. 



