Nutrition Investigations. 



341 



Examination of Urine. 



ESTIMATION OF AMOUNT 

 01' SALEP EXCRETED. 



May 17, 10 A.]\I 

 May 18, 10 A.M 

 May 18, 3 P.M 

 May 19, 9 A.M 

 May 20, 9 A.M 



May 21, 11 A.M 

 May 22, 9 A.M 



Injection 

 165 

 250 



405 

 200 



0.14° 



0.14° 



0.34° 

 0.14° 



0.14° 

 0.14° 



Grams. 



0.4 



Salep present — ^pre- 

 cipitated bj' Feh- 

 ling's Solution. 



Salep present. 



No Salep present. 



— 3.88*' in a 200 mm. tube. The urine contained no reducing 

 substance at any time. The changes in rotation, due to sinistrin in- 

 jection, are shown in the following table: 



Examination of Urine. 



ROTATION. 



ESTIMATION OF AMOUNT 

 OF SINISTRIN EXCRETED.* 



January 15, 12 M 



January 15, 2:30 P.M \ Injection 



January 16 j 260 



January 17 and 18 1 165 



January 19 60 



January 20 108 



- 0.41° 



- 0.97° 

 -0.41° 

 -0.41° 



- 0.47° 



Grams. 



2.5 



' Calculating for alnlatrin la] d = — 29.1°. 



2. Intraperitoneal. 



Experiment A. A dog weighing 6.5 kg. received 110 cc. of sinis- 

 trin solution, containing 2 grams pure substance. This solution 

 showed a rotation of —1.18° in a 200 mm. tube. No reducing sub- 

 stance was found in the urines examined. The changes in rotation, 

 due to sinistrin injection, are shown in the following table: 



