BIBLIOGRAPHY 283 



Page of text 

 on which 

 reference 

 is made 



441. Hoffmann, H., 'Riickblick auf meine Variations- 

 Versuche,' Bot. Ztg., Leipzig, 1881, xxxix, pp. 345-351, 

 361-368, 377-383, 393-399. 409-415, 425-432. 



Resume of previous experiments. 



442. 1882. Hoffmann, H., 'Culturversuche viber Variation,' Bot. Ztg., 



Leipzig, 1882, XL,, pp. 483-489, 499-514. 



Variation in flower -col our in cultures of Papaver 

 alpinum, P. somniferum, Dianthus superbus and others. 



443. 1883. Hoffmann, H., ' Culturversuche liber Variation,' Bot. 



Ztg., Leipzig, 1883, XLI, pp. 276-281, 289-299, 305-314, 

 321-330, 337-347. 



Variation in flower-colour in cultures of Anemone 

 nemorosa, Phyteuma spicatum, and others. 



444. 1884. Goff, E. S., 'The Relation of Color to Flavor in Fruits 



and Vegetables,' Amer. Nat., Philadelphia, 1884, xvm, 

 pp. 1203-1210. 



Many cases are quoted in which there is a distinct 

 often strong and unpleasant flavour when colour is 

 present in fruits and vegetables. See text. p. 205 



445. Hoffmann, H., ' Culturversuche iiber Variation,' Bot. 

 Ztg., Leipzig, 1884, XLII, pp. 209-219, 225-237, 241-250, 

 257-266, 275-279. 



Variation in flower-colour in cultures of species of 

 Papaver and Raphanus. 



446. 1887. Focke, W. 0., 'Die Culturvarietaten der Pflanzen,' 



Abh. natw. Ver., Bremen, 1887, ix, pp. 447-468. 



General discussion on variation. Examples are given 

 of variation in colour of flowers, fruits, roots, etc., under 

 cultivation. 



447. Hoffmann, H., 'Culturversuche iiber Variation,' Bot. 

 Ztg., Leipzig, 1887, XLV, pp. 24-28, 40-45. 55-57, 72-76, 

 86-90, 169-174, 233-239, 255-260, 288-291, 729-746, 753- 

 761, 769-779. 



Variation in flower-colour in cultures of Anagallis 

 arvensis, Anthyllis Vulneraria, Atropa Belladonna, Dic- 

 tamnus Fraxinella, Digitalis purpurea and others. 



448. Jager, H., 'Zur Farbung der Blutbuche,' Qartenflora, 

 Berlin, 1887, xxxvi, pp. 40-41. 



Suggested correlation between young wood colour and 

 leaf colour. 



449. Webster, A. D., 'Change of Colour in the Flowers 

 of Anemone nemorosa,' J. Bot., London, 1887, xxv, 

 p. 84. 



Colour of flowers is said to depend on nature of soil in 

 which plants were growing. 



