c: 813 ;] 



XXVI. Additional Observations on the Effects of Magnesia in 

 preventing an increased Formation of Uric Acid; with Remarks 

 on the Influence of Acids upon the Composition of the Urine. By 

 WilJiam Thomas Brande, Esq. F. R. S. Prof. Chem. R. I. 

 Communicated by the Society for improving Animal Chemistry, 



Read June 3, 1813. 



In a paper which I had the honour of laying before this So- 

 ciety, about tliree years ago, and which is published in the Phi- 

 losophical Transactions*, some cases are related, illustrating 

 the effects of magnesia in preventing an increased formation 

 of uric acid, and some experiments are detailed, instituted with 

 a view to discover its mode of action. 



Since that period many opportunities have occurred, both 

 to Sir EvERARD Home and myself, of confirming its efficacy 

 upon a more extended scale, and of ascertaining the efficient 

 treatment of those cases in which magnesia is ineffectual, and 

 in which it has even been found to aggravate the complaint. 



To bring forward additional evidence in favour of the use 

 of magnesia, and to distinguish the cases in which its use is 

 indicated, from those where it is improper or hurtful, are the 

 principal objects of the present communication, and will be 

 considered in the two following sections. 



• For 1813, p. 106, 



Ffs 



