CHEMICAL BASIS OF THE ANIMAL BODY. It,-, 



readily than does the purified. The following figure shows addi- 

 tionally some very characteristic forms in which uric acid sepa- 

 rates out from urine either spontaneously or after tin- condition of 

 hydrochloric acid. 



FlG. 18. CRYSTM- r I'm. ATM.. (After Funke.) 



C acid is remarkably insoluble in water (1 in 14,000 or 

 15,000 of cold water, 1600 of boiling). Ether and alcohol do not 

 Ive it appreciably, (hi the other hand, sulphuric acid takes 

 it u]' in tin- i-old without decomposition, ami it is also readily 

 soluble in many salts of the alkalis, as in the caustic alkalis 

 tbem>elves : ammonia however scarcely dissolves it, and in this 

 re-pert it ilitleix conveniently from cystin. It is fairly soluble 

 in ulyreiin. and soluble to some extent in solutions of lithium 

 carbonate. 



FlO. 19. (Krtik r Kuhno.) 



Urinary sediment, sli i'-tly the most usual form of crystals 



of aciil sodium unite. ('..II N iN' 4 Og. 



