BIBLIOGRAPHY 259 



Pape of text 



on which 



reference 



is made 



Correlation between distribution of anthocyanin and 

 that of oxidases and inhibitors. p. 119 



247. Atkins, W. R. G., 'Some Recent Work on Plant Oxi- 

 dases,' Set'. Progr., London, 1914, ix, pp. 112-126. 



Summary of situation as regards connection between 

 pigment formation and oxidase reactions. 



248. Everest, A. E., 'The Production of Anthocyanins and 

 Anthocyanidins,' Proc. R. Soc., London, 1914, LXXXVII B, 

 pp. 444-452. 



Account of the production of pigments, which are claimed 

 to be true anthocyanins, by reduction of flavones with 

 nascent hydrogen. See text. pp. 112, 123 



249. Everest, A. E., 'The Production of Anthocyanins and 

 Anthocyanidins. Part 2.' Proc. R. Soc., London, 1914, 

 LXXxvinB, pp. 326-332. 



Further evidence to prove identity of artificial and 

 natural anthocyanins which has been questioned by 

 Willstatter and also by Wheldale and Bassett. p. 123 



250. Everest, A. E., 'A Note on Wheldale and Bassett' s 

 Paper "On a supposed Synthesis of Anthocyanin," 

 J. Genetics, Cambridge, 1914, iv, pp. 191-192. 



Further remarks on the identity of artificial and natural 

 anthocyanins. 



251. Hall, A. D., Armstrong, E. F. and H. E., Keeble, F., 

 and Russell, E. J., ' The Study of Plant Enzymes, particu- 

 larly with relation to Oxidation,' Rep. Brit. Ass., London, 

 1914, pp. 108-109. 



Tt is pointed out that every oxidation involves also a 

 reduction. Hence the concurrence in distribution between 

 oxidases and pigments need not necessarily prove the pig- 

 ments to be formed by oxidation. Some such view be- 

 comes necessary if the reduction hypothesis of anthocyanin 

 formation be retained. 



252. Tswett, M., 'Zur Kenntnis des "'vegetabilischen 

 Chamaeleons," ' Ber. D. hot. Ges., Berlin, 1914, xxxu, 

 pp. 61-68. 



Discussion of the acid and alkali reactions of antho- 

 cyanin, and Willstatter's hypothesis as regards them. Also 

 Keeble and Armstrong's explanation of loss of colour of an- 

 thocyanin in alcohol which is disbelieved by author (Tswett). 

 Further remarks on author's artificial anthocyanin. p. 120 



253. Wheldale, M., ' Our Present Knowledge of the Chemistry 

 of the Mendelian Factors for Flower -Colour,' J. Genetics, 

 Cambridge, 1914, iv, pp. 109-129. 



Summary of work on subject. 



172 



