243 



PERIOD O* REACTION OT MTTHTTI9. 

 tO 15 20 25 30 35 40 45 SO 55 60 



PBWOD Or UACTIOR P HJrTTTTH. 



PERIOD or REACTION m worms 



448 



70- 



60 - 



PERIOD OP REACTION IN MINUTES. 

 6 ,Q ,5 20 25 30 35 40 45 50 55 60 



457 



PERIOD op REACTIOB m MnnTTEl 

 ,0 15 20 25 30 35 40 45 50 55 



CHARTS D 448 TO D 462. Velocity-Reactions of Starches of Iris persica var. purpurea ( ), Iris sindjarensi 



( ), and Iris pursind ( ). 



448. With Potassium Hydroiide. 



449. With Potassium Iodide. 



450. With Potassium Sulphpcyanate. 



451. With Potassium Sulphide. 



452. With Sodium Hydroiide. 



453. With Sodium Sulphide. 



454. With Sodium Salicylate. 



455. With Calcium Nitrate. 



456. With Uranium Nitrate. 



457. With Strontium Nitrate. 



458. With Cobalt Nitrate. 



459. With Copper Nitrate. 



460. With Cupric Chloride. 



461. With Barium Chloride. 



462. With Mercuric Chloride. 



