262 



PERIOD OF RACTION ffl MINUTES. 



PERIOD OP kiAL iluli Of MINUTES 



PERIOD OP REACTION ffl MINUTES 



CHARTS D 683 TO D 688. Velocity-Reactions of Starch of Iris iberica with various reagents, showing the percentage 

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



683. With Strontium Nitrate. 



684. With Cobalt Nitrate. 



685. With Copper Nitrate. 



686. With Cupric Chloride. 



687. With Barium Chloride. 



688. With Mercuric Chloride. 



PERIOD OF REACTION IN MINOTES 



PERIOD OF REACTION Oi MOTUTE& 

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



PERIOD OP REACTIOR IN MINUTES 

 5 10 15 20 __25 30 35 40 45 50 55 60 



CHARTS D 689 TO D 691. Velocity-Reactions of Starches of Amaryllis belladonna (-- --), Phaius grandtfolius 



(- -), and Miltonia vexillaria ( ). 



689. With Uranium Nitrate. 690. With Cobalt Nitrate. 691. With Pyrogallic Acid. 



