W. A. Davis, A. J. Daish and G. C. Sawyer 321 



Series II. Mangold Le 



September lOth-llth, 1912. 



(1) Extract evaporated in vacuo and made to 2.50 cc. 200 cc. of 

 the 250 treated with basic lead acetate, filtered and washed to 1 litre. 

 Excess of lead removed by solid sodium carbonate and made to 

 1000 cc = A. 



(2) Extract evaporated in vacuo and made to 250 cc. 200 cc. of 

 the 250 treated with basic lead acetate, filtered and washed to 1 litre 

 = A. 375 cc. of A were deprived of lead by solid NagCOg and made 

 up to 500 cc. = B. For reduction used 10 cc. B = 7-5 cc. A. (Solution 

 after inversion = C.) 



(3) Extract evaporated in vacuo and made up to 500 cc. 440 cc.i 

 of the 500 treated with basic lead acetate, filtered and washed to nearly 



1 In some eases, indicated in Table under "Remarks," 400 cc. were used instead 

 of 440 cc, 



