250 BIBLIOGRAPHY 



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 on which 

 reference 

 is made 



178. 1894. Heise, R., 'Zur Kenntniss des Heidelbeerfarbstoffes,' 



Arb. Gesundhtsamt, Berlin, 1894, ix, pp. 478-491. 



Preparation, purification and analysis of pigments from 

 Bilberry fruits. See text, pp. 9, 46, 58, 62 



179. 1895. Weigert, L., ' Beitrage zur Chernie der rothen Pflanzen- 



farbstoffe,' Jahresbericht und Programm der k. k. onologi- 

 schen und pomolocjischen Lehranstalt in Klosterneuburg, 

 Wien, 1895, pp. i-xxxi. 



Scheme for differentiation of anthocyanin pigments by 

 means of qualitative tests into two groups, ' Weinroth ' and 

 'Riibenroth.' pp. 9, 45, 51 



180. 1897. Beilstein, F., Handbuch der organischen Chemie, 1897, 



Bd in, pp. 651-652. 



Short account of anthocyanin from chemical point of 

 view. 



181. Carles, P., et NiviSre, G., 'Influence des matieres 

 colorantes sur la fermentation des vins rouges tres colores,' 

 C. E. Acad. sci., Paris, 1897, cxxv, pp. 452-453. 



Explanation offered is that tannin nature of colour- 

 ing matters acts as an antiseptic and inhibits the 

 fermentation. 



182. Sostegni, L., 'Sulle materie coloranti delle uve rosse,' 

 Gazz. chim. ital., Roma, 1897, xxvn (2), pp. 475-485. 



Extraction and analysis of pigments from grapes. 



183. 1898. Dippel, L., Das Mikroskop und seine Anwendung, 



Braunschweig, 1898, Th. 2, pp. 65-66, 105-106, 108-109. 

 Solubilities and other properties of anthocyanin. 



184. 1899. Claudius, M., 'Ueber die Anwendung einiger gewohn- 



licher Pflanzenfarbstoffe in der mikroskopischen Farbungs- 

 technik,' Centralbl. Bakt., Jena, 1899, v, pp. 579-582. 



Use of anthocyanin for histological staining. p. 29 



185. Keegan, P. Q., 'Experiments on the Floral Colours,' 

 Nature, London, 1899, LXT, pp. 105-106. 



Reactions of anthocyanin with alkalies, salts, etc. 



186. 1 900. Formanek, J., 'Der Farbstoff der rothen Rube und sein 



Absorptionsspectrum,' J. prakt. Chem., Leipzig, Neue 

 Folge, 1900, LXII, pp. 310-314. 



Account of normal spectrum and of those developed 

 with acid and alkali respectively. p. 56 



187. Miyoshi, M., 'Ueber die kitnstliche Aenderung der 

 Bliitenfarben,' Bot. Centralbl., Cassel, 1900, LXXXIII, 

 pp. 345-346. 



Reactions of alum salts, acids and alkalies on various 

 anthocyanins. Bearing on Molisch's results with 

 Hydrangea (see No. 467). p. 202 



