1865.] into and out of the Vascular and Non-vascular Textures. 411 



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 eva- 

 poration. 



Fifth day. Less perceptible in evaporated residue. 



Sixth day. No lithium could be detected in evaporated urine. 



'Experiments. The same man took ten grains of carbonate of lithia after 

 fasting for seven hours. The urine was passed every second minute after 

 taking the lithia. 



Second, fourth, and sixth minute, no lithium. 



Eighth minute, traces of lithium very slight. 



Tenth minute, lithium distinctly present. 



Third day afterwards lithium very distinct. 



Fourth day. Lithium faintly found in each drop of urine. 



Fifth day. Lithium very faint in each drop. 



Sixth day. Only the merest trace. 



Seventh day. No lithium in the eighth of an ounce evaporated to a few 

 drops. 



Eighteenth day. Two ounces of urine incinerated, and the ash heated with 

 sulphuric acid and alcohol, showed no lithium. 



Twenty-first day. Nails of the hands and feet still show lithium. 



Experiment 4. The same man, two hours and a half after a little food, 

 took ten grains of chloride of lithium : one nail on the hand and one on 

 the foot were varnished before taking the lithium. 



Second and fourth minute afterwards no lithium was in the urine. 



Sixth minute, traces of lithium. 



Eighth minute, distinctly present. 



Tenth minute, very distinctly. 



Twenty-five hours afterwards none of the nails showed any lithium. 



Forty-four hours. Scrapings of the unvarnished nails on the hands and 

 feet showed lithium distinctly. The further the scraping was carried the 

 less lithium was found. The scrapings of the varnished nail of the hand 

 shows only traces of lithium. The varnished nail of the foot has no lithium. 

 A small particle of the skin from the hand or foot shows lithium distinctly. 

 Perspiration shows lithium distinctly. The hair of the head or whiskers 

 shows no lithium. 



Third day. Nails the same as yesterday. The unvarnished nails show 

 lithium ; the varnished, none. Urine shows lithium most distinctly. 



Fourth day. Urine shows lithium in one drop. 



Fifth day. Urine still shows minute traces of lithium in one drop. 



