APPENDIX III. 101 



The fifth was killed in ninety-six hours. The 

 lens showed no lithium even when a considerable 

 proportion of it was taken for one experiment. The 

 aqueous extract of half one lens showed no lithium. 

 A small portion of the cartilage of the hip-joint 

 showed no lithium. The urine showed lithium very 

 distinctly even in one drop. 



Experiment 19. Six fresh guinea-pigs were taken. 

 The first was killed and examined, having had no 

 lithium. The two lenses, incinerated and treated 

 with sulphuric acid and alcohol, showed no lithium. 

 The ash of the kidney showed no lithium directly, 

 but when treated with sulphuric acid and alcohol, 

 showed a distinct trace of lithium. 



The five others were given each one grain of 

 chloride of lithium. 



The first was killed five and a half hours after the 

 dose. The cartilage of the hip-joint showed lithium 

 faintly when merely touched with a red-hot wire. 

 The lens showed lithium distinctly in the outer 

 part, scarcely a trace in the inner part. The 

 vitreous and aqueous humours showed lithium very 

 distinctly. The stomach was quite full. 



The second was killed twenty-four and a half 

 hours after the lithium was taken. The cartilage 

 of the hip-joint showed no lithium even in a small 

 particle scraped off the surface. The lens still 

 showed lithium distinctly, though less so than in 

 the first ; no difference was perceptible between the 

 inner and the outer portion. 



The third was killed in forty-eight hours. The 

 lens showed no lithium in a small particle taken on 



