232 Plant Tissue Culture 



59. , and Maneval, W. E. 1923. Further experiments 



on growth of excised root tips under sterile conditions. 

 Bot. Gaz. 76: 274-287. 



60. , and Schmidt, M. B. 1938. Growth of excised 



roots of the tomato. Bot. Gaz. 99 : 671-728. 



61. , and . 1939. Further experiments on ex- 

 cised tomato roots. Am. Jour. Bot. 26: 149-159. 



62. , and White, V. B. 1936. Limited growth and 



abnormalities in excised corn root tips. Bot. Gaz. 98: 

 209-242. 



63. White, P. E. 1932. Influence of some environmental con- 



ditions on the growth of excised root tips of wheat seed- 

 lings in liquid media. Plant Physiol. 7: 613-628. 



64. . 1933. Liquid media as substrata for the cultur- 



ing of isolated root tips. Biol. Ztrbl. 53 : 359-364. 



65. . 1934. Potentially unlimited growth of excised 



tomato root tips in a liquid medium. Plant Physiol. 9: 

 585-600. 



66. . 1938. Cultivation of excised roots of dicoty- 

 ledonous plants. Am. Jour. Bot. 25: 348-356. 



Cultivation — Callus and Cambium 



67. Gautheret, K. 1934. Culture du tissu cambial. C. r. acad. 



sci., Paris, 198: 2195-2196. 



68. . 1937. Nouvelles recherches sur la culture du 



tissu cambial. C. r. acad. sci., Paris, 205: 572-574. 



69. . 1938. Sur le repiquage des cultures de tissu 



cambial de Salix Capraea. C. r. acad. sci., Paris, 206: 

 125-127. 



70. . 1938. Eecherches sur la culture de fragments de 



tubercules de carotte. C. r. acad. sci., Paris, 206: 457-459. 



71. . 1939. Sur le developpement de fragments de 



tubercules de chou-rave. C. r. soc. biol., Paris, 130: 244- 

 247. 



72. . 1939. Sur la possibility de rSaliser la culture 



ind^finie des tissus de tubercules de carotte. C. r. acad. 

 sci., Paris, 208: 118-120. 



73. . 1940. Sur la culture du tissu cambial de Carotte. 



C. r. soc. biol., Paris, 134: 398-399. 



