241 



PBKIOD OP REACTIOK Dl MUTDTES. 



PERIOD OP UACnOH Dt UDfUTZS. 



'100 

 . 90 



I 60 



I 40 



I 



Charts D 421 to D 435. — Velocity-Reactions of Starches of Iris cengialti ( ),Iris pallida queen of 



may ( ), and Iris mrs. alan grey ( ). 



421. With Chloral Hydrate. 



422. With Chromic Acid. 



423. With Pyrogallio Acid. 



424. With ^Iit^ic Acid. 



425. With Sulphuric Acid. 



426. With Hydrochloric Acid. 



427. With Potaaeium Hydroxide. 



428. With Potassium Iodide. 



429. With Potassium Sulphooyanate. 



430. With Potassium Sulphide. 



431. With Sodium Hydroxide. 



432. With Sodium Sulphide. 



433. With Sodium Salicylate. 



434. With Calcium Nitrate. 



435. With Uranium Nitrate. 



16 



