Am.  Jour.  Phaim.  I 
])ecember,  1911.  f 
Book  Reviews. 
S77 
Salvarsan. — A  book  review  calls  attention  to  a  volume  on  sal- 
varsan  published  by  Messrs.  Meister,  Lucius  and  Briining  Limited, 
51  St.  Mary  Axe,  London,  E.  C,  for  free  distribution.  This  volume 
of  155  pages  in  addition  to  comments  on  the  chemistry  and  the  test- 
ing of  salvarsan  contains  pharmacological  notes,  a  discussion  of  the 
dosage  and  a  number  of  clinical  reports  with  a  review  of  the  litera- 
ture up  to  the  present  time. — Pharm.  J.  Land.,  191 1,  v.  87,  p.  341. 
BOOK  REVIEWS. 
Allen's  Commercial  Organic  Analysis.  Volume  v.  Fourth 
edition.  Entirely  rewritten.  Edited  by  W.  A.  Davis,  London,  and 
Samuel  S.  Sadtler,  Philadelphia.  Philadelphia :  P.  Blakiston's  Sons 
&  Co.,  1012  Walnut  Street,  191 1.    $5.00  net. 
In  the  fifth  volume  of  this  work,  we  find  a  number  of  subjects 
treated  which  are  of  very  great  interest  to  pharmacists.  The  mono- 
graph on  "  Coloring  Matters  of  Natural  Origin  "  is  the  work  of 
W.  M.  Gardner,  Bradford,  England.  Here  will  be  found  very 
many  facts  relating  to  the  properties,  methods  of  assaying  and  the 
formative  analytical  examination  of  such  important  products  as 
logwood,  catechu,  cutch,  gambler,  turmeric,  gamboge,  saffron, 
cudbear,  alkanet,  safflower,  orchil,  litmus,  etc.  There  are  two  other 
equally  interesting  monographs  on  coloring  substances,  the  one 
relating  to  the  coal-tar  dyes  by  Mr.  W.  P.  Dreaper  and  Dr.  E.  Feil- 
man,  and  the  other  to  the  "  Dyestuffs  of  Groups  6  to  12  "  by  Dr. 
J.  T.  Hewitt.  These  contain  in  very  condensed  form  invaluable 
information  which  one  interested  in  these  subjects  is  likely  to  re- 
quire almost  daily.  The  chapter  on  the  "Analysis  of  Coloring 
Materials,"  by  Mr.  Dreaper  and  Dr.  Feilman,  is  particularly  well 
done  and  will  save  the  user  of  the  book  much  time  in  looking  up 
the  original  papers  in  the  literature.  Another  chapter  of  great  in- 
terest to  pharmacists  as  well  as  food  analysts  is  the  one  treating 
of  "  Coloring  Matters  in  Food,"  by  Mr.  Albert  F.  Seeker.  The 
monograph  on  "  Tanneries  "  was  written  by  Mr.  W.  P.  Dreaper, 
and  has  been  well  ' done,  although  the  subject  is  one  of  the  most 
difficult  for  the  analyst  in  practice.  Finally  there  is  a  chapter  on 
"  Inks  "  by  Mr.  Percy  FI.  Walker,  of  Washington.  This  is  of  the 
saire  high  order  of  excellence  as  the  other  monographs. 
It  will  well  repay  the  pharmacist  to  have  all  of  the  volumes  of 
