NEUTRAL ALKALINE PHOSPHATES. 269 



them with carbonate of soda, which will certainly be produc- 

 tive of some error; and although it is to be regretted that our 

 methods of arriving at phosphoric acid in analysis may be 

 diminished by this fact, still it will only stimulate us to find 

 out some other to solve this, one of the most difficult and 

 annoying problems in analytical chemistry. 



