APPENDIX III. 211 



and it was hung up so that the the solution gravi- 

 tated to the lowest part. The outer side of the 

 stomach opposite the solution was touched from time 

 to time with a loop of platinum wire, which was 

 afterwards tested for lithium. 



In first minute. No lithium came through the 

 stomach. 



In second minute. No lithium. 



In third minute. No lithium. 



In fourth minute. No lithium. 



In fifth minute. No lithium. 



In sixth minute. Traces of lithium. 



In seventh minute. Traces of lithium. 



In eighth minute. Lithium was very distinct. 



The stomach of another guinea-pig was filled 

 with a solution of lithium containing one grain of 

 lithium in about half an ounce of water. The 

 stomach was entirely filled and laid flat on a plate. 

 The ends of the stomach and round the' side showed 

 lithium coming through in four minutes. The 

 upper part of the stomach showed the lithium 

 coming through in fifteen minutes. 



5. On the Presence of Lithium in Solid and Liquid 

 Food. 



An ounce of each substance was taken. It was 

 dried or evaporated, and incinerated carefully at a 

 low red heat in a muffle on a platinum tray. The 

 ash was tested for lithium first by taking a small 

 fraction on a loop of a platinum wire into the flame 

 of the spectroscope. When no lithium was thus 



