1910.] 



PUBLIC DOCUMENT — No. 31. 



109 



black was at 7.30 a.m., November 8, — fifteen and a half hours 

 later, — and it bad entirely disappeared from the faeces on 

 November 13, at 4 p.m., — six days later. 



November 7, at 4 p.m., and November 8, at 7 a.m.. Sheep III., 

 receiving hay, gluten feed, salt and 200 grams of molasses, re- 

 ceived in addition a total of 15 grams of lampblack. The first 

 colored faeces were noted November 8, at 2 p.m., — twenty-two 

 hours later, ■ — • and the color disappeared November 13, at 

 4 p.m., — after a lapse of six days. 



The above data placed in tabular form are as follows : — 



It is evident that these results do not show sufficient varia- 

 tion to warrant a conclusion that the molasses exerted any 

 peristaltic action. It is to be admitted that the lampblack did 

 not prove as sharp an indicator as was desired. It is intended 

 to make additional observations of a similar character, using 

 another indicator, and also to continue our inquiry relative to 

 the cause of the depression. 



