( KIM M 



57 



TABLE A 9. 



The reactivities of the hybrid an? the . 

 of the teed parent in none 'of the reaction*; Uie -m--r 

 M those of the pollen parunt in the reactions with polar- 

 ization, gentian \iu|, i. anil -.ifruimi; the Mine a* UlOM 

 of both parent* in none of the react rmcdiato 



with iodine and sodium u MI one being mid- 



intermediate and in the other closer to the pollen parent; 

 highest with i.-iujK-ratur.-, chloral hyili 

 pyrogallic acid, nitric acid, nuljihuric aci.!. doric 



ii- id, potassium hydroxide, potassium L..II.I,-,' JK.UMIUIII 

 Milphocjanate, DoUssium sulphide, *odium h 

 Medium sulphide, calcium nitrate, uranium" nitrate, 

 strontium nitrate, cobalt nitrate, copper nitrate, cupric 

 chloride, barium chloride, an. I m.-n-urii- chloride (in 19 

 being clowr to the pollen parent, and in being at clone 

 to one as the other parent) ; and the lowest in no rea 



The following is a summary of the rcat-tion-intcnw- 

 tiea : Same u teed parent, ; tame as pollen parent. :< . 

 same as both parenU, 0; intermediate, 2; highest 

 lowest, 0. 



liitcrmediatencw is almost absent, aameneas or incli- 

 nation to the teed parent entirely absent, and highest reac- 

 tivity and sameness or inclination to the pollen parent 

 VTV conspicuous. C. moorei, the seed par. ut. not onh 

 tends to higher reactivities than the other parent, but 

 also to so markedly raise the reactivities of tin* hybrid as 

 to bring the latter higher as a rule than it* own. The 

 seed parent has obviously had very little influence in 

 determining the properties of the starch of the hybrid. 

 In this set C. longifolium i the seed parent and in the 

 preceding set the pollen parunt, and in both it ha- 

 comparatively impotent in determining the parental 

 leanings of the hybrid. (Sec Chapter 5, Section I.) 



COMPOSITE CURVES or REACTION INTKNBITIW. 



This soctii.n treats of the composite curves of the 

 reaction-intensities showing the differentiation of the 

 starches of Crinum longifolium, C. moorei, and C. 

 potcellii. ( Chart E 9.) 



The most conspicuous features of thin chart are: 



(1) The relatively remarkably high reactivity <>f the 

 hybrid. It in higher than in either parent with few ex- 

 ceptions, and in the latter instances it is the Kan 

 -lightly lower than that of one or the other parent. 



(2) The closeness with which the hybrid and C. 

 moorei curve* run through most of the reactions. In 17 

 out of the 26 reaction* the hybrid curve ia closer to the 

 C. moorei curve. In 7 inntances (chromic arid, calcium 

 nitrate, uranium nitrate, cobalt nitrate. , ..j.j.. r n.- 

 cupric chloride, and mercuric chloride) it is farther 

 separated from the curves of the parent -I.M ks than are 

 the latter (separated from each other. The hi^li reac- 

 tivity of the hybrid in comparison with the reactivities 

 of the parent stocks in the reactions with calcium nitrate, 

 uranium nitrate, copper nitrate, cupru- chloride, and 

 mercuric chloride is quite remarkable by showing a wide 

 departure from intermed lateness. 



(3) In C. longifolium the very high reactions with 

 polarization, pyrogallic acid, nitric acid, sulphuric acid, 

 hydrochloric acid, potassium hydroxide, potassium 

 iodide, potassium sulphocyanate, and sodium hydroxide; 

 the liijfh reactions with gentian violet, safranin, chr 

 acid, sodium salicylate, and strontium nitrate ; the mod- 

 erate reactions with iodine and sodium sulphide ; the low 



.n* with chloral hydrate, temperature, potassium 

 sulphide, calcium nitrate, uranium nitrate, cobalt ni- 

 trate, copper nitrate, cupric chloride, ami i . hlo- 

 ride ; and the very low reaction with barium chlorr 



high reaction* with polari- 

 zation, pyrogallic acid, mtri. a. id. sulphuric acid, hrdro- 

 .LI-!. poUssium hydroxide, pntaamum iodide. 



