249 



RuoD or KEicnon ot loHUTBa. 



I 



nnoD OF tZAcnoK n lumnxi. 

 6 10 15 20 25 30 35 40 45 60 65 81 



2 70 

 o 



S 60 



\ 



£ 30 



B 20 



,'- 



538 



Chabts D 533 TO D 535, D 537, D 538. — Velocity-Reactions of Starches of Begonia double white ( ), Begonia 



socotrana ( ), and Begonia julius ( ). 



533. With Chloral Hydrate. 



534. With Chromic Acid. 



535. With Pyiogallio Acid. 



537. With Nitric Acid. 



538. With Strontium Nitrate. 



Chart D 536. — Velocity-Reactions of Pyrogallic Acid with the Starch of Begonia double white. Percentage of 

 entire number of grains ( ) and total starch ( ) gelatinized. 



5 10 15 20 25 30 35 40 45 60 



540 



^ 



SB, 



Charts D 539 to D 541, D 543, D 544. — Velocity-Reactions of Starches of Begonia double deep rose (- 



Begonia socotrana (- -), and Begonia success ( ). 



539. With Chloral Hydrate. 541. With Pyrogallio Acid. 543. With Nitric Acid. 



•), 



540. With Chromic Acid. 



544. With Strontium Nitrate. 



Chart D 542. — Velocity-Reactions of Pyrogallic Acid with the Starch of Begonia double deep rose. Percentage of 

 entire number of grains ( ) and total starch ( — — ) gelatinized. 



