420 



Dr. B. Jones on the Passage of Crystalloids 



[1865. 



In ash direct. 

 No lithium. 



In alcoholic extract. 

 Very faint traces. 

 No lithium. 



Entire sheep's kidney. 



One ounce of kidney. 



One ounce of mutton. ,, ,, 



One ounce of beef. 



It appears from these experiments that 



Potatoes showed lithium once in five trials. 



Apples ,, twice in four trials. 



Carrots no lithium in two trials. 



Bread lithium thrice in three trials. 



Cabbage twice in two trials. 



Tea ,, eight times in ten trials. 



Coffee four times in five trials. 



Port wine six times in six trials. 



Sherry ,, six times in six trials. 



French wine, four times in four trials. 



Rhine wine,, eight times in eight trials. 



Ale twice in three trials (traces). 



Porter twice in three trials (traces). 



Mutton, beef, and sheep's kidney showed no lithium : one kidney had 

 a slight trace of lithium. 



I hope in a future paper, with the help of Dr. Dupre, to show that Thal- 

 lium, Rubidium, and Caesium, by spectrum analysis, can be traced even 

 into the crystalline lens, and to determine the rate at which they pass in, if 

 not out of, the textures ; and by other means we shall endeavour to trace 

 the passage of other crystalloids throughout the textures. 



CONCLUSIONS. 



1. On the Rate of P assay e of Solutions of Lithium into the Textures of 

 dnimals. 



In guinea-pigs, even in a quarter of an hour after three grains of 

 chloride of lithium are taken into the stomach, the lithium may be found 

 not only in all the vascular textures, but even in the cartilage of the hip- 

 joint, and in the humours of the eye. If the same quantity is injected 

 into the skin, in ten minutes it can be detected in the lens and everywhere ; 

 and even in four minutes the lithium may be detected everywhere except 

 in the lens. 



In half an hour after the same quantity is taken into the stomach, lithium 

 may be found in the crystalline lens. 



After it has been taken eight hours, it may not have passed completely 

 into the inner part of the lens. 



In twenty-six hours it will be found in every part of the lens. 



When half a grain only of chloride of lithium was taken, in less than 



