COPYRIGHT, 1917, BY P. BLAKISTON'S SON & Co. 



The use in this volume of certain portions of the text of 

 the United States Pharmacopoeia is by virtue of permission 

 received from the Board of Trustees of the United States 

 Pharmacopoeia! Convention. The said Board of Trustees is 

 not responsible for any inaccuracy nor for any errors in the 

 statement of quantities or percentage strengths. 



Permission to use for comment parts of the text of the 

 National Formulary, Fourth Edition, in this volume, has been 

 granted by the Committee on Publication by authority of the 

 Council of the American Pharmaceutical Association. 



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