W. A. Davis and CI. C. Sawyer 



383 



Invertase 

 inversion 



a' 



25 CO. A 

 25 CO. A' 

 25 cc. ^ 

 25 cc. A' 

 25 cc. A 

 25 cc. ^ 

 25 cc. A 

 25 cc. ^ 

 25 cc. A 

 25 cc. A 

 25 cc. .4 

 25 cc. A 

 25 cc. ^ 

 25 cc. A 



+ 0-115 

 ±0-000 

 + 0-261 

 - 0-002 

 + 0-117 

 + 0-183 

 + 0-149 

 + 0-139 

 + 0-189 

 + 0-190 

 + 0-120 

 + 0-133 

 + 0-168 

 + 0-147 



-3 3 



PS g 



0-0426 

 0-0032 

 0-0835 

 0-0024 

 0-0387 

 0-0513 

 0-0312 

 0-0505 

 0-0578 

 0-0725 

 0-0272 

 0-0390 

 00415 

 0-0188 



3 go 



2 > 3 



3 ij m 

 -73 C 3 



0-1445 



0-2300 



0-1247 

 0- 1.548 

 0-1318 

 0-1800 

 0-1684 

 0-1960 

 01073 

 0-1168 

 0-1328 

 0-0648 





-0-104 



-0-075 



-0-078 



- 0-056 

 -0-051 

 -0-096 

 -0-107 

 -0-090 

 -0061 



- 0-044 

 -0-024 

 -0-035 



Citric 

 inversion 



« 3 



n-i o 



3 go 



2 > 3 



3 t- w 



ft ce tic 



0-1470 

 0-0125 

 0-2223 

 0-0190 

 0-1298 

 0-1612 

 0-1408 

 0-1887 

 0-1767 

 0-1998 

 0-1161 

 0-1232 

 0-1375 

 0-0857 



'Z a 



s a 



-0-108 

 -0-000 

 -0-050 

 -0-022 

 -0-061 

 -0-066 

 -0-050 

 -0-100 

 -0-101 



- 0-042 

 -0041 

 -0-047 



- 0-020 

 -0-032 



0-0169 



0-0127 



0-0077 

 0-0054 

 0-0045 

 0-0071 

 00069 

 0-0094 

 0-0059 

 0-0063 

 0-0063 

 0-0053 



Remarks 



1st Utre (.4) 

 2nd litre (.4') 

 1st Utre (A) 

 2nd litre (4') 

 A = 2000 cc. 



* In most cases the solution vpas sufficiently colourless to allow the reading to be taken 

 in a 400 mm. tube. The data given are, however, all reduced to the 200 mm. standard 



Potato Stalks. July 16th-17th, 1914. 



Distilled in vacuo and made up to 250 cc. 190 cc. of the 250 treated 

 mth basic lead acetate, filtered and washed to 1 litre, solid sodium 

 carbonate added and made up to 1000 cc. = Solution A. 





0-0090 

 0-0085 

 0-0102 

 0-0170 



* In this analysis the extract was made to 200 cc. (not 250) and 170 cc. of the 200 

 treated with basic lead acetate. 



