210 APPENDIX III. 



On the Passage of Solutions of Lithium through the 

 Textures after Death. 



A sheep's eye was examined after death and no 

 lithium could be detected in any part. Two other 

 eyes were placed in a solution of chloride of lithium 

 containing one grain to one litre of water. Twenty- 

 three hours afterwards the lithium was found to 

 have penetrated through the entire eye. There 

 was, however, a perceptible difference between the 

 amount of lithium in the inner and outer part of the 

 lenses. 



Two other sheep's eyes had a small portion of the 

 cornea in front and the sclerotic removed at the 

 back ; they were then placed in a moderately strong 

 solution of chloride of lithium, and the aqueous 

 humour was examined from time to time. 



After eighteen hours the aqueous humour showed 

 lithium distinctly, and when the lens was extracted 

 the lithium was found throughout its substance. 



Two other eyes were placed whole in a solution 

 containing one tenth of a grain of chloride of lithium 

 to one litre of water. 



In twenty-four hours the lithium had penetrated 

 the entire eye. No difference was perceptible in 

 different parts of the lens. 



The rate at which a solution of chloride of lithium 

 diffused through the stomach of a fresh-killed 

 guinea-pig which had taken no lithium was deter- 

 mined. 



A solution of one grain of chloride of lithium in 

 twenty grains of water was put into the stomach, 



