APPENDIX III. 201 



Ninth minute, none. 



Tenth minute, very faint traces of lithium. 



Thirteenth minute, lithium very distinctly present. 



After twenty-four hours lithium still very dis- 

 tinct. 



Second, third, fourth, and fifth day. Still very 

 distinct. 



Seventh day. No lithium was found in the eva- 

 porated residue. The ash of the residue shows 

 very slight traces. 



Eighth day. The alcoholic extract from one ounce 

 of urine shows no lithium. 



Experiment 6. The same boy had his hair, nails, 

 and urine "examined, and no lithium was found. 



Five grains of carbonate of lithia were then given 

 to him. 



In two minutes, five minutes, ten minutes, no 

 lithium was found in the urine. 



In twenty minutes lithium was distinctly present. 



In eighteen hours the lithium was found in the 

 nails, none in the hair of the head. 



In thirty- two hours, still none in the hair of the 

 head. Very distinctly in the root and tip of the 

 nails. 



Another five grains of carbonate of lithia were 

 then given. 



In nineteen hours lithium was detected in the 

 hair of the head. 



In four days a drop of the urine showed lithium 

 very distinctly, as did the hair and nails. 



In five days the same. 



In seven days one drop of the urine shows no 



