246 



I 40 

 % 



\ 



nuoD or BEicnoH m wmrTBa. 



100" 



, so- 



70- 

 50- 



60- 



PERIOD or KE&cnon m uiifinE& 



MBios or iiAcnoH n icmrTBs. 

 6 10 IS 20 25 30 36 40 49 50 S5 60 



Charts D 490 to D 504.- 



490. With Potasaium Hydroxide. 



491. Witli Potassium Iodide. 



492. With Potassium Sulphocyanate. 



493. With Potassium Sulphide. 



494. With Sodium Hydroxide. 



-Velocity-Reactions of Starches of Tritonia pottsii ( ), Tritonia crocosmia aurea 



( ), and Tritonia crocosmceflora ( ). 



495. With Sodium Sulphide. 



496. With Sodium Sahcylate. 



497. With Calcium Nitrate. 



498. With Uranium Nitrate 



499. With Strontium Nitrate. 



500. With Cobalt Nitrate. 



501. With Copper Nitrate. 



502. With Cupric Chloride. 



503. With Barium Chloride. 



504. With Mercuric Chloride. 



