198 APPENDIX III. 



In ten minutes lithium was evident. 



In eighteen hours it was present in the nails of 

 the hands and feet, and in the hair of the beard and 

 body ; apparently most where there was most per- 

 spiration. No lithium could be found in the hair 

 of the head or whiskers. 



In forty-two hours very perceptible. 



In sixty- six hours another dose of ten grains was 

 taken. 



In ninety hours lithium was detectable in the 

 hair of the head. 



For three days after the second dose it was per- 

 ceptible in one drop of the urine, but rather doubtful 

 in the hair and in the nails. 



For six days after the second dose lithium was 

 detectable in the urine. 



For eight days after, no lithium could be detected 

 when the eighth of an ounce of urine was evapo- 

 rated. 



Twelve days afterwards, though no lithium was 

 in the urine or the hair of the head or whiskers, it 

 was detectable in the hair of the body. 



Experiment 2. The same man three hours after 

 breakfast took ten grains of carbonate of lithia. 



In five minutes lithium was just perceptible in 

 the urine. 



In ten minutes extremely distinct in one drop of 

 the urine. 



In twenty-four hours very distinct in the urine. 



Fourth day. Traces of lithium when the urine 

 was concentrated by evaporation. 



Fifth day. Less perceptible in evaporated residue. 



