AmM0ay?i89h9arnJ'}       U.  S.  and  Br.  Pharmacopoeias.  225 
as  the  back  is  fastened  to  the  lids  by  tape  and  the  edges  of  the 
leaves  are  stained  red;  the  paper,  however,  is  a  little  thin,  the 
impressions  showing  through  the  leaves  to  some  extent.  The  U.S.P. 
is  91^  x  6  inches,  containing  602  pages,  the  printing  is  rather  more 
distinct  and  the  titles  stand  out  more  prominently,  owing  to  their 
being  in  heavier  type.  In  comparing  the  contents  of  the  books, 
many  interesting  differences  are  found ;  to  bring  these  out  more 
prominently  I  have  tabulated  their  contents  : 
A  COMPARISON  OF  THE  CONTENTS  OF  THE  U.S.P.  WITH  THOSE  OF   THE  B.P. 
Class.                                          .                             U.S.P.  B.P. 
Drugs  of  Vegetable  Origin  *  .  .  202  142 
"  Animal          "    21  18 
"      "  Chemical       "    181  129 
Acids  (not  included  with  chemicals)   32  29 
Alkaloids  and  Alkaloidal  Salts   32  25 
Cerates   6 
Collodions   4  3 
Confections   2  4 
Decoctions   2  3 
Discs  (Lamella)  *  .  .  .  .  4 
Glucosides  and  Neutral  Principles   6  6 
Effervescing  Salts   4  6 
Elixirs   2 
Emulsions   4 
Extracts,  Solid   34  22 
Fluid   88  16 
(Extractum  Liquidum,  B.P.)  
Lozenge  Bases   4 
Glycerites   6  9 
Honeys   3  2 
Infusions   4  22 
Injections,  Hypodermic   4 
Juices  (Succi)                                   .  .  .  *   1  6 
Liniments   9  15 
Lotions   2 
Masses  <   3 
Mixtures   4  9 
Mucilages   4  2 
Oils  (Fixed  and  Volatile)   53  35 
Ointments  -  23  44 
Oleoresins   6 
Oleates   3  1 
Oxymels   2 
Papers  (Charta)   2  1 
Petroleum  Products   3  3 
Pills   15  20 
