278 



No sign of uric acid after several days. The standard de- 

 posited a few crystals, on the third morning. 



EXPERIMENT III. 



To the same quantity of urine, were added two drachms 

 only of lime-water; which, though insufficient to neutralize 

 the disengaged phosphoric acid, yet seemed as effectually 

 to prevent the separation of uric acid, as the greater quan- 

 tities employed in the former experiments. 



EXPERIMENT IV. 



To three ounces of the urine of a child, six years old, 

 still warm, and subject to deposit gravel upon cooling, 

 were added two drachms of lime-water; which effectually 

 prevented all separation of this matter; whilst the standard 

 precipitated, copiously, this saline substance, after three 

 hours. 



EXPERIMENT V. 



To three ounces of the same kind of urine as in the 

 preceding, was added one drachm of lime-water: the re- 

 sult the same as in the former. Some precipitation in the 

 standard, as in the preceding experiment. 



When we consider the small proportion of lime kept in 

 solution in water, and that the lime-water, used in my 



experiments, 



