424 Dr. B. Jones on the Passage of Crystalloids, $c. [1865. 



Twenty-seven hours afterwards a third eighth of a grain was given ; and 

 the same dose on the third, fourth, fifth, sixth, seventh, ninth, and tenth 

 days ; on the eleventh day the animal died. One grain and a quarter of sul- 

 phate of silver in twelve days was taken. The ashes of the liver, kidney, 

 and stomach showed silver fairly, by means of galvanic precipitation of 

 silver or copper. The ash of the bile showed silver rather less distinctly. 

 The ash of the urine showed the silver only very slightly. The ash of 

 the lenses showed only very slight traces of silver, and the ash of the 

 brain showed none. 



On the Passage of Chloride of Strontium into the Textures. 



Two guinea-pigs, which had been given no strontium, had the whole 

 kidney, liver, and lenses examined for strontium, but no trace of it could 

 be found. 



A guinea-pig was given four grains of chloride of strontium ; in seven 

 hours it was killed. The 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 then the urine showed strontium very 

 distinctly. On the sixth day another half grain, and again on the seventh, 

 eighth, ninth, tenth, and eleventh day, until five grains and a half were 

 taken. The twelfth day it was killed. The urine showed strontium dis- 

 tinctly. No strontium could be detected in the lens, humours, or blood ; 

 and minute traces only in the ash of the kidneys and liver. 



