COPYKIGHT, 1917 



By the MACMILLAN COMPANY 



Set up and electrotyped. Published November, 1917. 



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 Pharmacopoeial Con- 

 vention. The said Board of Trustees is not responsible for any in- 

 accuracy of quotation nor for any errors in the statement of quanti- 

 ties or percentage strengths. 



