NERINE. 



65 



Reaction-intensities of che Bybi 



This section treats of the reaction intensity - oj 

 hybrids as regards sameness, intern 

 and deficil in relation to the parents. (Table A ll and 

 Charts D211 to D 231.) 



The reactivities of the hybrid X. giantess are the 

 same as those of the seel parent in the reactions with 

 gentian violet ami safranin ; the same as those of the 

 pollen parent with iodine, chloral hydrate, sulphuric 

 acid, sodium salicylate, calcium nitrate, and uranium 

 nitrate; and the same as those of both parents with 

 pyrogallic acid, potassium hydroxide, sodium sulphide, 

 cobalt nitrate, cupric chloride, barium chloride, and mer- 

 curic chloride, in all of which the reactions are too fast 

 or too slow for differentiation ; intermediate with chromic 

 acid, potassium iodide, potassium sulphocyanate, potas- 

 sium sulphide, strontium nitrate, and copper nitrate (in 

 three being mid-intermediate, in one nearer the seed 

 parent, and in two nearer the pollen parent) ; highest in 

 the temperature reaction, and nearer the seed parent ; 

 and lowest in the reactions with polarization, nitric acid, 

 hydrochloric acid, and sodium hydroxide (in one being 

 as near as the other parent, in one nearer the seed parent, 

 and in one nearer the pollen parent). 



The reactivities of the hybrid A*, abundance are the 

 same as those of the seed parent in the reactions with 

 iodine, temperature, and sulphuric acid ; the same as 

 those of the pollen parent with gentian violet, potassium 

 iodide, and sodium salicylate ; the same as those of both 

 parents with pyrogallic acid, potassium hydroxide, so- 

 dium sulphide, cobalt nitrate, cupric chloride, barium 

 chloride, and mercuric chloride, in all of which the reac- 

 tions are too fast or too slow for differentiation ; inter- 

 mediate with safranin, potassium sulphide, and strontium 

 nitrate (in two being closer to the seed parent, anil in 

 one closer to the pollen parent) ; highest with tempera- 

 ture and chloral hydrate, m the former being closer 

 to the seed parent and in the latter to the pollen parent ; 

 ami lowest with polarization, chromic acid, nitric acid. 

 hydrochloric acid, potassium sulphocyanate, sodium hy- 

 droxide, calcium nitrate, uranium nitrate, and copper 

 nitrate (in one being as close to one parent as to the 

 other, in one closer to the seed parent, and in seven closer 

 to the pollen parent). 



Composite Curves of the Reaction-intensitiks. 



This section treats of the composite curves of the 

 reaction-intensities, showing the differentiation of the 

 starches of Nerine bowdeni, X. sarniensis var. corusca 

 major, X. t/iantess, and -V. abundance. (Chart E 11.) 



The must conspicuous features of this chart are: 



(1) The very close correspondence in the rises and 

 falls of the curves of the parents, excepting in the reac- 

 tions with chloral hydrate and potassium sulphide, the 

 same peculiarity having been noted in the preceding set, 

 excepting that in this set the potassium sulphide 

 retain the same relative positions, the disagreement in 

 the latter being attributable to the relatively low reac- 

 tivity of N. bowdeni. 



(2) N. bowdeni has higher reactivities than the other 

 parent (N. sarniensis var. corusca major) with gentian 

 violet, safranin, temperature, chromic acid, nitric acid, 

 potassium iodide, potassium sulphocyanate, sodium hy- 



droxide, calcium nitrate, uranium nitrate, and copper 

 nitrate ; lower with p., Inn/.,: iloral hyi 



sodium salicylate, and 

 or pra the same with p. i ,'iiuric 



sulphide, -odium sulphidi upric chloride, 



barium chloride, and mercuric chloi 



(3) In A. , hiph reactions with 

 polarization, sulphuric acid, and potassium hydroxide; 

 the high i as with chromic ai id, hydro hloric acid, 

 and sodium salicylate : the moderal 



gentian \ iol ranin, nitric acid, pot.. ilpho- 



cyanate, and strontium nitrate; the low i with 



temperature, chloral hydrate, and potassium sulphide; 

 the very low ri with p\ n -sium 



le, sodium hydi idium sulphid no ni- 



trate, uranium ial1 uitral . ■ ■ r nitrate, 



cupric chloi iride, and n 



(4) In N. sarniensis \ar. corusca maj>>r the very high 

 reactions with polarization, sulphuric acid, potassium 

 hydroxide, and sodium salicylate; the high - with 

 iodine, chloral hydrate, hydrochloric acid, and strontium 

 nitrate; the mo ictions with gentian violet, safra- 

 nin, chromic acid, and nit ric acid : t he low reactions with 

 temperature, potassium sulphocyanate, and i 

 sulphide; and the very low gallic 

 acid, potassium iodide, sodium hydro !ium sul- 

 phide, calcium nitrate, uranium nitrate, cobalt nii 

 copper nitrate, cupric chloride, barium chloride, and 

 mercuric chloride. 



(5) In the hybrid N. giantess the i reactions 

 with polarization, sulphuric acid, potassium hydroxide, 

 and sodium salicylate; the high reactions line, 

 chloral hydrate, hydrochloric acid, and strontium nitrate; 

 the moderate reactions with gentian violet, safranin, 

 temperature, chromic acid, ami nitric acid; the low reac- 

 tions with potassium sulphocyanate and potassium sul- 

 phide; and the verj lew s with pyrogallic 

 potassium iodide, sodium hydroxide, sodium sulpl 

 calcium nitrate, uranium nitrate, cobalt nitrate, copper 

 nitrate, cupric chloride, barium . and mercuric 

 chloride. 



(6) In the hybrid N. abundance the very high reac- 

 tions with polarization, sulphuric acid, potassium hydrox- 

 ide, and sodium salicylate ; the high read ions with chloral 

 hydrate and hydrochloric acid; the n -ions 

 with iodine, gentian \ iob t. safranin, chromic acid, nitric 

 acid, and strontium nitrate; the low reactions with tem- 

 perature and potassium sulphide ; and the very low reac- 

 tions with pyrogallic acid, potassium iodide, potassium 

 sulpho sodium hydroxide, sodium sulphide, cal- 

 cium nitrate, uranium nitrate, cobali nitrate, copper 

 nitrate, cupric . barium chloride, and mercuric 

 chloride. 



The following is a summary of the reaction-intensi- 

 ties: 



