274 



Plant Tissue Culture 



rust infections, 199 



Rytz; Schopfer and R., 76, 244 



S 



Sachs, 220, 251, 254 



Saeger, 76, 246 



Saintpaulia, 28 



Saintpaulia ionantha, 250 



' ' sal volatile oleosum, ' ' 66 



Salix eapraea, cultures of cam- 

 bium, 116, 123 



Salix eapraea, respiration of 

 cambium cultures, 189 



"salt-cellars" (culture dishes), 

 132 



salt mixtures in nutrient solu- 

 tions, 90 



saltations, 133 



salts, 71, 92, 93 



Sambucus nigra, grafts in cam- 

 bium cultures, 213 



sand furnaces, 66 



sap, xylern, as nutrient, 27 



scalariform cells, differentiation 

 of, 194, 208 



scalpels, 82, 83, 85 



scar tissue, 2 



Scheitterer, 28, 48, 148, 151, 235 



Schilling, 43, 251 



Schleiden, 5, 8, 230 



Schmidt; Robbins and S., 35, 

 95, 98, 105, 133, 157, 158, 185, 

 232, 243, 244 



Schmucker, 27, 43, 91, 235 



Schneider, 230 



Schopfer and Rytz, 76, 244 



Schotte, 30, 258 



Schwanitz, 7, 251 



Schwann, 4, 5, 8, 230 



scions, 7 



scissors, cystoscopic, 83 



scissors, Gruenewald, 82 



scissors, Heyman, 82 



scissors, iridectomy, 82 



scissors, nasal, 82 



seasonal variations in growth, 

 77,75 



secondary thickening, 159 



secondary tumors, 221 



seed primordia, cultivation of, 



125, 151, 206 

 seedling roots, as culture ma- 

 terial, 117 

 segregation of functions, 4 

 segregation of tissues and cells 



for study, 5 

 Seifriz, 62 

 Seitz filters, 107 

 semi-solid culture media, 101, 



102 

 Sempervivum, 28 

 serum, as nutrient, 90 

 serum bottles, 73 

 Shapiro; Brachet and S., 218, 



256 

 shock of excision, 48 

 Shreve; MacDougal and S., 44, 



260 

 silica still, 70 

 silver still, 70 

 sink, 69 

 Sinnott and Bloch, 44, 58, 126, 



251 

 Skoog; Thimann and S., 99, 210, 



255, 260 

 slides, depression (hollow- 



ground), 130, 149 

 slides, pierced, 80, 81, 130, 149 

 Smith, L. H., 28, 47, 251 

 Smith, R. S.; Knudson and S., 



32, 239 

 Snow, 210, 211, 254 

 soap, 71 

 sodium, 92 

 sodium acid phosphate, 103, 104, 



105 

 sodium chloride, 176 

 sodium pyrophosphate, 71 

 sodium sulfate, 103, 104 

 softener, water, 70 

 "soft" glass cover glasses, 150 

 soil solution, 56 

 Solarium, 28 



Solatium tuberosum, 233 

 Solidago, 253 



somatic cells, totipotency of, 30 

 Spemann, 30, 219, 258; S. and 



Geinitz, 219, 259 



