INDEX 



Author names are in black face type, plant and animal names in 

 italics. Page references in black face type indicate bibliography, 

 ■while those in italics indicate illustrations. 



Abies lasiocarpa, 55 



Abies pectinata, cambium, cul- 

 tures of, 127 



abscission, auxin a factor in, 

 210 



Acer pseudoplatanus, grafts in 

 cambium cultures, 213 



achenes, sterilization of, 118 



acid, ascorbic, 99 



acid, boric, 103, 104, 105 



acid, chromic (see potassium 

 dichromate) 



acid, humic, 56 



acid, indole-acetic, effects on 

 growth, 98, 105, 179, 182, 

 186-188, 194, 202 



acid, nicotinic, 97, 98, 100, 103, 

 104, 105 



acid, sulfuric, as nutrient, 105 

 (see also cleaning solution, 

 71) 



acids, amino (see amino-acids) 



Addicott, 203, 241; A. and Bon- 

 ner, J., 97, 241; Bonner, J., 

 and A., 34, 57, 93, 100, 131, 

 185, 230 



adventitious embryos, origin and 

 cultivation of, 220 



adventitious roots, 50, 88, 120 



aeration, effect on differenti- 

 ation, 194 



aeration, effect on geotropic re- 

 sponse, 192 



aeration, requirements of roots, 

 56 



Aesculvs, 252 



agar, 102, 104, 105 



air-conditioning, of culture and 

 transfer rooms, 74, 77 



alanine, 31 



alcohol, for cleaning glassware, 

 71 



alcohol lamps for flaming in- 

 struments, 83 



alcohol sterilization of tissues, 

 119 



algae, growth in stock salt solu- 

 tions, 104 



Allium, 28 



amino-acids, 93, 99, 100 



amino-nitrogen, as measure of 

 growth, 156 



Amoureux; Berthelot and A., 

 199, 247 



amphibian embryos, 14, 15 



animal tissue cultures, 21-30 



Antirrhinum, cultures of seed 

 primordia, 206 



apical dominance, in roots, 55 



aposporous embryos, 220 



apple seeds, aseptic removal of, 

 118 



Appleman, 211, 252 



area of cultures, measurement 

 of, 158 



Arnold sterilizer, 69, 107 



Arnon, 70, 93, 236; A. and 

 Stout, 70, 93, 237; Stout and 

 A., 70, 93, 237; Hoagland 

 and A., 70, 237 



ascorbic acid, 99 



asepsis, 117 et seq. 



asparagin, 31 



Aspidium, 28 



atmospheric humidity, 134 



