APPENDIX III. 223 



urine showed strontium distinctly in a single drop. 

 No strontium could be detected in the kidney, liver, 

 or lens, though a whole lens was taken for the 

 examination by the spectrum analysis. 



Another guinea-pig was given ten grains of 

 chloride of strontium ; in fourteen hours and a half 

 it was killed. A small quantity of urine showed no 

 strontium, and no strontium was found in the ashes 

 of the kidney or liver. 



To a third guinea-pig half a grain of chloride of 

 strontium was given. Nineteen hours afterwards 

 the urine showed traces of strontium, and then half 

 a grain more was given. Twenty-four hours and a 

 half afterwards another grain was given; and 

 twenty -four hours after this half a grain more. 

 Twenty-seven hours afterwards another half-grain 

 of chloride of strontium was given. At this time 

 the urine showed strontium very distinctly. On 

 the sixth day another half- grain, and again on the 

 seventh, eighth, ninth, tenth, and eleventh days, 

 until five grains and a half were taken. The twelfth 

 day it was killed. The urine showed strontium 

 distinctly. No strontium could be detected in the 

 lens, humours, or blood ; and minute traces only in 

 the ash of the kidneys and liver. 



THE END. 



