194 APPENDIX III. 



aqueous humours, but very faintly in the aqueous ex- 

 tract of the lens. The stomach was moderately full. 



The other was kept until the lithium ceased to 

 appear in the urine. 



Second day. Lithium very distinctly. 



Fourth day. Minute traces of lithium. 



Sixth day. A drop or two of urine shows no 

 lithium, but on evaporating and incinerating one- 

 twelfth of an ounce, the ash shows lithium very 

 distinctly. 



Seventh day. Lithium still distinct in the ash. 



Eighth day. Still in the ash. 



Tenth day. Ash of urine shows only the merest 

 trace. 



Eleventh day. Ash of urine shows no lithium ; 

 but when treated with sulphuric acid and alcohol, 

 lithium is still distinct. 



Thirteenth day. Still lithium in one quarter of 

 an ounce. 



Fourteenth day. Alcoholic extract from one- 

 eighth of an ounce shows no lithium. 



Sixteenth day. The animal was killed. The 

 fluids and organs were incinerated, the ash treated 

 with sulphuric acid, excess of acid driven off and 

 the dry residue extracted with absolute alcohol, 

 alcoholic extract evaporated, and dry residue tested. 

 The two lenses gave extremely feeble traces of 

 lithium. One-eighth of an ounce of urine and bile 

 gave traces of lithium. Ninety grains of liver gave 

 traces. One quarter of an ounce of blood gave no 

 lithium. An entire kidney, weighing ninety grains, 

 distinctly contained lithium. 



