Index 



269 



Harris yeast, 101 



Harrison, 9, 14, 21, 23, 30, 35, 



90, 131, 183, 209, 210, 219, 



229, 236, 257 

 Heidt, 33, 231 

 Eelianthus annuus, 251 

 Helianthus tuberosus, 251 

 heterologous grafts, 221 

 heterosis, 220 

 Heyman scissors, 82 

 histograms, use of, 175 

 histology, 202, 203 

 Hitchcock; Zimmerman and H., 



255; Zimmerman, Crocker, 



and H., 255 

 Hoagland and Arnon, 70, 237; 



H. and Broyer, 56, 245 

 hollow-ground slides, 130, 149 

 homologous grafts, 221 

 hood, bacteriological, 74 

 hood, chemical, 77 

 hormones, 93, 96, 210-212 

 Hort, 42 

 humic acid, 56 

 Huxley, 218, 258 

 hybrid peaches, 45 

 hybrid tomatoes, 220 

 hydrogen-ion gradients, 217 

 hydrostatic gradients, 217 

 hydrostatic potential, 218 

 hydrostatic pressure, 190 

 Hyoscyamus niger, 254 

 hyperhydrie enlargement, 206 

 hypocotyl, prolif erative capacity 



of, 47 

 hypotheses, working, 3 



immature ovules, cultivation of, 



58 

 immersion heater, 83 

 implements, 82 et seq., 85 

 incompatibility, 220 

 increment rates, 155 et seq. 

 indole-acetic acid, 98, 105, 179, 



182, 186-188, 194, 202 

 innervated cells, 209 

 inoculation procedures, 138 et 



seq. 

 insect galls, 126 



insolation, danger from, 144 

 intercalary meristems, 48, 49, 



124, 151 

 intumescences, 114 

 iodine, 92 



iodine, effects of deficiency, 188 



iridectomy scissors, 82 



iris, epithelium, 2 



iron, 92 



iron, effects on growth, 180, 181 



iron, optimal concentrations of, 



185 

 iron chloride, 109 

 iron nitrate, 109 

 iron sulfate, 103, 105, 106, 109, 



180, 181 

 iron tartrate, 105 

 isopleth diagrams, use of, 176 

 isotonicity, 94 



J 

 Jaeger, 43, 48, 249 

 Jensen 's No. 16 virus, 202 

 Johnson, B.; Naylor and J., 44 



125, 250 



Johnson, D. S., 34, 46, 47, 260 

 juvenile cells, 48 



K 



Kalanchoe, 28 



Kemmer, 28, 234 



Kisser; Klein and K., 118, 249 



Klein and Kisser, 118, 249 



Knop's solution, 31, 104 



Knudson, 32, 234, 239; K. and 



Smith, R. S., 32, 239 

 Koepfli; Bonner, J., and K., 188, 



252; Thimann and K., 210, 



255 

 Kbgl and Haagen-Smit, 99, 253; 



K., Haagen-Smit, and Erxle- 



ben, 212, 253 

 kohl-rabi, cultivation of tissues 



of, 124 

 Kotte, 31, 32, 33, 34, 35, 36, 37, 



56, 94, 100, 101, 131, 192, 231 

 Krontowski, 229 

 Kubowitz; Warburg and K., 



184, 247 

 Kunkel, 28, 234 

 Kuster, 28, 126, 229, 249 



