BIBLIOGRAPHY 249 



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Author maintains that loss of colour is due to alkalinity 

 of dead tissues, and that acidity of cell -sap is essential for 

 preservation of red colour. 



169. Mtiller, N. J. C., ' Spectralanalyse der Bliithenfarben,' 

 Jahrb. wiss. Bot., Berlin, 1889, xx, pp. 78-101. 



Observations on spectra and fluorescence of various 

 anthocyanins in solution in both sulphuric acid and potash. 



pp. 45, 56 



170. 1890. Lacour, E., 'Note sur le sue et la matiere colorante du 



phytolacca.' J. pharm. chim., Paris, 1890, xxi, pp. 243-245. 

 Note on the pigment of Phytolacca which is used for 

 colouring wines. Action of acids, alkalies, salts of metals ; 

 solubilities of pigment, etc. 



171. Macchiati, L., 'Ricerche preliminari sulle sostanze 

 coloranti delle gemme foglifere del castagno indiano,' 

 Nnovo Giorn. bot. Hal., Firenze, 1890, xxu, pp. 76-78. 



Slight note on extraction of red pigment from bud- 

 scales of Horse Chestnut. 



172. Waage, Th., 'Ueber das Vorkommen und die Rolle des 

 Phloroglucins in der Pflanze,' Ber. D. bot. Ges., Berlin, 

 1890, vm, pp. 250-292. 



Connection of phloroglucin with anthocyanin. 



173. *Zopf, W., Die Pilze in morphologischer, physiologischer, 

 biologischer und systemaii seller Beziehung, Breslau, 1890. 



Decomposition of anthocyanin by Moulds. 



174. 1891. *Lidforss, B., 'Ueber die Wirkungssphare der Glycose- 



und Gerbstoffreagentien,' Kongl. Fysiografiska Sdllskapets 

 i Lund Handlingar, Ny Foljd., Bd 3, Lund, 1891-1892, ix. 

 Reduction of Fehling's solution by anthocyanin in its 

 capacity of a glucoside. 



175. 1892. Gautier, A., 'Sur I'origine des matieres colorantes de la 



vigne ; sur les acides ampelochroi'ques et la coloration 

 automnale des vegetaux,' C. R. Acad. sci., Paris, 1892, 

 cxiv, pp. 623-029. 



Account of isolation, purification and properties of three 

 pigments from Vine leaves. See text. 



pp. 9, 24, 46, 58, 61, 82, 84, 106 



176. Glan, R., Ueber den Farbstqff des schwarzen Halve 

 (Althaea rosea), Inaugural-Dissertation, Erlangen, 1892. 



Full account of preparation, properties and analysis of 

 pigment. Sec text. pp. 58, 62 



177. *Haverland, Fr., Beitrdge zur Kenntniss der in den 

 Friichten von Phytolacca decandra (Kermesbeeren) enthal- 

 tenen Bestandtheile, Inaugural -Dissertation, Erlangen, 

 1892. 



