220 APPENDIX III. 



showed caesium slightly. No caesium could be 

 detected in the two lenses taken for one examination ; 

 nor in the liquid humours of the eyes. A small 

 portion of the ash of the kidneys and liver showed 

 no csesium, but aqueous extracts, after concentration, 

 showed csesium faintly. No csesium could be 

 detected in the blood, nor in the bile. 



A guinea-pig was given six grains of chloride of 

 caesium, and six grains more nineteen hours after- 

 wards; twenty- four hours after the second dose it 

 was killed. No csesium could be found in the 

 lenses, nerves, aqueous humour, blood, or bile. 

 Urine, kidney, and liver showed caesium slightly in 

 the aqueous extract of the ash. 



A guinea-pig was given ten grains of chloride of 

 caesium, and twenty hours afterwards ten grains 

 more. Twenty-seven hours after the second dose it 

 was killed. 



The evaporated and incinerated extract of the two 

 lenses showed the' caesium only faintly. The 

 aqueous humour of the eye showed caesium faintly. 

 The evaporated and incinerated extract of the two 

 large nerves of the legs showed caesium pretty 

 distinctly. 



On the Passage of Sulphate of Thallium into the 

 Textures. 



A rabbit was given one grain of sulphate of 

 thallium. The urine, passed two hours after the 

 first dose, gave the reaction very clearly. 



Another rabbit was given three grains of sulphate 



