248 



or UACTIOH a 

 6 tO 16 20 25 30 35 4O 45 50 36 60 



520 



100 



. 90 



I 80 

 5 70 



B 60 

 1 40 



PERIOD or UAcnoH i inmrru. 

 5 10 15 20 25 30 35 40 45 50 55 60 



mt)OD OV UACTtOK 04 UIKVrtA. 



PEBJOD or ruACTiOH in uwirrta. 



6 10 18 20 25 30 



100 

 . 90 



6 10 15 20 26 30 



3 70 

 o 



S 60 



S 40 



I 3 



S 20 



* 10 



or fauCRON ct unions. 

 6 (0 16 20 23 30 33 4O 45 60 S3 60 



PERIOD OP RTiCnOF DI MDIUTEa 



525 



CHARTS D 520 TO D 526. V doc-it y-Readions of Starches of Begonia single crimson scarlet ( ), Begonia 



socotrana ( ), and Begonia mrs. heal ( ). 



620. With Uranium Nitrate. 



621. With Strontium Nitrate. 



522. With Cobalt Nitrate. 

 623. With Copper Nitrate. 



524. With Cupric Chloride. 



525. With Barium Chloride. 



526. With Mercuric Chloride. 



PSVOD Of B1ACI1OI Ol kUMTTU. 



HJUOD or :7.-:-.Kf DT uavm. 



or UACTWII n 



or KucnoH 171 

 10 15 20 25 30 35 40 43 6O 00 00 



PERIOD Or RBACTIOIf IN UmtJTBA 



CHARTS D 527 TO D 529, D 531, D 532. Velocity-Reactions of the Starches of Begonia double light rose ( -- 



Begonia socotrana ( ), and Begonia ensign ( ) 



527. With Chloral Hydrate. 



528. With Chromic Acid. 



529. With Pyrogallio Acid. 



531. With Nitric Acid. 



532. With Strontium Nitrate. 



CHART D 530. Velocity-Reactions of Pyrogallic Acid with the Starch of Begonia double light rose. Percentage of 

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



