DICOTYLEDONS 65 



remedies just mentioned. When there are symptoms of 

 collapse, stimulants are to be freely employed. 



As it is most important to be able to distinguish the above- 

 mentioned two substances, I copy the following from Dr. 

 Taylor^s work : — Cream of tartar is known by its diluted 

 solution not being precipitated by the sulphate in any salt 

 of lime ; and by its being rendered only milky or turbid on 

 the addition of nitrate of silver. 



Lime-water furnishes a ready means of distinguishing 

 these two salts. It precipitates both of them white j but 

 the precipitate from the bitartrate of potash is redissolved on 

 adding to it a small quantity of a solution of tartaric acid; 

 while that from the binoxalate is not redissolved. 



Ink-stains, if made from oak-galls, are removed by salts of 

 lemon ; but not by bitartrate of potash. 



For treatment of poisoning by Oxalic Acidy Binoxalate of 

 Potash^ or Sodic Oxalate^ Mr. Blyth says : Unless the patient 

 has already vomited freely, empty the stomach at once by 

 emetics of zinc sulphate or mustard ; or the stomach-pump 

 or tube may, in most cases, be used. If the acid has been 

 taken, neutralize by chalk, lime-water, or, better, by sacchar- 

 ated lime-water ; but o?i no accotint neutralize by carbonate 

 of soda or any alkali ; for the alkaline oxalates are extremely 

 poisonous. 



Give plenty of water to assist elimination by the kidneys : 

 and apply hot fomentations to the loins. 



An enema may be given, if necessary. 



E 



