

1904.] of the Gall Bladder of the Frog. 43$ 



Gall bladder tested by Dr Waller's ABC Method. 

 Excitation through BA and lead-off through BC or AC. 



B c A 



S.s. 1000 * 



* +0-0142 

 Remaining and gradually diminishing. 



-0-0019 



1000 ^ 



^ - 0-0062 



*- +0-0028 



Compensation current. 



5000 



BC = -0-0007 +0-0075 



CA = -0-0008 ^ +0-0091 



+ 0-0094 



On changing key to CA the deflection of galv. is further +0-0016 

 returning to BC sends it further + . 



off, and back to 

 + 0-0010 



- 0-0075 



5000- - 



+0-0150 



5000+ ^ 



- 0-0075 



-^ +0-0020 



^- -0-0006 



Changing to CA sends it + 2, and BC is found to be - 6 without 

 shunt. 



5000- ^ 



_^ +0-0150 



^ +0-0110 



Changing to BC lessens the + effect by 4 (shunt J) = 0-0040 



5000+ *- 



^- -0-0045 Followed by 

 + 0-0025 



