A'oci;  i9iaorm- }  Book  Reviews.  493 
BOOK  REVIEWS. 
Allen's  Commercial  Organic  Analysis.  Vol.  III.  Fourth 
Edition,  entirely  rewritten.  Edited  by  W.  A.  Davis  and  Samuel 
S.  Sadtler.  Philadelphia,  P.  Blakiston's  Son  and  Co.,  1012  Walnut 
St.,  1910.    $5.00  net. 
In  this  volume  a  number  of  subjects  are  considered,  each  having 
been  prepared  by  special  contributors.  The  chapter  on  "Hydro- 
carbons "  was  written  by  F.  C.  Garrett,  of  New  Castle-upon-Tyne, 
England.  The  parts  on  "  Bitumens,"  "  Phenols,"  and  "  Anthra- 
cene and  its  Associates  "  were  prepared  by  S.  S.  Sadtler,  of  Phila- 
delphia. The  monographs  on  "  Naphthalene  and  its  Derivatives  " 
and  "  Phthalic  Acid  and  the  Phthaleins  "  were  written  by  W.  A. 
Davis,  of  London.  The  chapter  on  "  Aromatic  Acids  "  is  the  work 
of  Edward  Horton,  of  London.  "  Gallic  Acid  and  its  Allies  " 
received  the  special  attention  of  W.  P.  Dreaper,  of  London,  and 
the  monograph  on  "  Modern  Explosives  "  was  written  by  A. 
Marshall,  of  Naini  Tal,  India. 
While  all  of  the  volumes  of  "  Allen's  Commercial  Organic 
Analysis  "  are  of  interest  and  value,  this  one  will  be  of  particular 
interest  to  pharmacists,  as  it  treats  of  so  many  of  the  compounds 
that  are  used  either  directly  or  indirectly  in  medicine.  The  infor- 
mation given  concerning  cresols,  creosote,  creosote  oils,  phenol, 
benzoic  acid,  cinnamic  acid  and  its  derivatives,  aromatic  balsams, 
cinnamic  balsams,  salicylic  acid  and  its  allies,  etc.,  is  extremely 
valuable.  The  good  features  which  were  noted  in  the  review  of 
Volumes  I  and  II  (this  Journal,  August,  p.  381)  apply  with  equal 
force  to  Volume  III.  Finally,  it  should  be  noted  that  in  the  editorial 
work  of  this  volume  Mr.  Sadtler  has  been  associated  with  Mr. 
Davis.  Professor  Leffmann  having  found  it  impossible  to  continue 
as  American  editor  of  the  series  and  at  the  same  time  prepare  those 
articles  for  which  he  has  become  responsible,  his  editorial  work 
will  in  the  future  be  assumed  by  Mr.  Sadtler. 
A  Text  Book  of  Organic  Chemistry.  By  Prof.  William  A. 
Noyes,  University  of  Illinois.  Second  Edition,  Revised.  New 
York:  Henry  Holt  and  Company,  1910. 
This  is  one  of  the  best  elementary  books  on  "  organic  chemis- 
try "  that  has  been  published.  The  present  edition  will  be  of 
special  interest  to  pharmacists  and  physicians,  as  the  chapter  on 
