218 APPENDIX III. 



can lithium be detected in any patf of the body of 

 man or animals, unless some larger quantity is taken 

 than ordinarily occurs in the food or drink. 



APPENDIX. Received July 8, 1865. 



On the Passage of Chloride of Rubidium into the 

 Textures. 



A guinea-pig was given three grains of chloride 

 of rubidium at 11 A.M. At 6.30 P.M. it was killed. 

 Rubidium was not detectable anywhere ; not even 

 satisfactorily in the urine. 



Another guinea-pig was given ten grains of 

 chloride of rubidium at 11.20 A.M. At 3 P.M. 

 scarcely any rubidium could be detected in the 

 urine. The following day, at 11 A.M., it was given 

 five grains more. At 2 P.M. rubidium was just 

 detectable in the urine. The next day, at 2 P.M., it 

 was again given five grains, the rubidium being just 

 perceptible in the urine. Twenty-five hours after- 

 wards it was killed. 



Extremely minute traces of rubidium were found 

 in the kidney and in the blood ; somewhat more, 

 but still very faint traces, in the liver. In the 

 cartilages no rubidium could be found, nor in the 

 aqueous humour of the eye. When the whole lens 

 was incinerated at once the smallest possible trace 

 of rubidium was found. The urine showed traces of 

 rubidium. 



An elderly man took nineteen grains of chloride 

 of rubidium four hours before he was operated on 



