Am.  Jour.  Pharm. 
Nov.,  1880. 
Reviews,  etc. 
declare  it.  But  whether  Dr.  Crow,  who  seems  to  be  the  leading  man  in  this  con- 
cern, and  his  co-partners  are  not  also  criminally  liable  for  using  the  U.  S.  mail  for 
fraudulent  purposes,  is  a  question  well  worthy  the  consideration  of  the  Postmaster 
General. 
Correction. — On  page  51  7  the  figures,  to  which  attention  was  called  by  a  foot-note, 
should  be  changed  from  48  to  7.^  troy  ounces  of  sugar. 
REVIEWS  AND  BIBLIOGRAPHICAL  NOTICES. 
^alitati^e  Chemical  Analysis.  By  Silas  H.  Douglas,  M.A.,  M.  D.,  and  by  Albert 
B.  Prescott,  M.D.,  F.C.S.  Third  edition,  wholly  revised.  New  York:  D. 
Van  Nostrand,  1880.    8vo,  pp.  305. 
The  work  is  intended  as  a  guide  in  the  practical  study  of  chemistry  and  in  the 
work  of  analysis,  and  occupies  a  prominent  place  amoi'g  works  of  similar  aim  for 
thoroughness  and  reliability.  After  an  introductory  chapter  on  notation,  atomic 
weights  and  general  advisory  remarks  on  analysis,  Pait  I  treats  of  the  metals  in  four 
groups,  Part  II  of  the  non-metals  and  the  acids,  and  Part  III  on  systematic  exami- 
nations. A  v«ry  interesting  and  valuable  addition  i?;  the  chapter  (Part  IV )  on  a 
study  of  oxidation  and  reduction.  The  concluding  pages  are  occupied  by  tables  of 
solubilities  and  of  reagents,  and  by  a  very  full  index.  The  work  well  deserves  the 
attention  of  teachers  and  students  of  analytical  chemistry. 
Grundlagen  zur  Beurtheilung  des  T rink-ivassers,  zugleich  mit  Berucksichtigung  der 
Brauchbarkeit  fur  genverbliche  Znjuecke  und  der  Reinigung  n^on  Abfall^asser^  nebst 
Anleitung  zur  Prufung  des  Wassers.  Von  Dr.  E.  Reichardt,  Professo:  in  Jena. 
Halle.    Buchhandlung  des  Waisenhauses,  1880.    8vo,  pp.  170. 
Principles  for  the  valuation  of  drink-water,  also  in  regard  to  the  fitness  for  indus- 
trial purposes  and  the  purification  of  waste-water,  with  a  guide  to  the  examination 
of  watei. 
The  title  indicates  the  aim  and  object  of  the  book  before  us.  The  fact  that  the 
publication  of  a  fourth  edition  has  been  rendered  necessary  is  a  sign  that  it  has  been 
found  useful  and  is  appreciated.  The  science  of  public  health  is  continually  attract- 
ing more  attention.  Water  is  a  necessary  agent  for  the  existence  of  man  and  of 
other  organized  beings,  and  the  preservation  of  man's  liealth  depends  to  a  very  con- 
siderable extent  upon  the  purity  of  the  water  consumed  by  drinking,  in  cooking, 
etc.  That  sewage  and  other  contaminatiois  of  water  are  apt  to  pioduce  serious 
epidemics  cannot  be  denied,  as  the  experience  of  certain  sections  of  our  own  country 
abundantly  proves.  It  is,  therefore,  a  matter  for  congratulation  that  the  examination 
of  water  has  received  much  attention  during  the  past  years. 
The  work  before  us  is  based  upon  a  large  number  of  investigations,  undertaken 
with  the  view  of  determining  the  fitness  of  various  waters  for  the  use  of  man.  It 
offers  numerous  suggestions  and  discusses  all  kinds  of  conditions,  which  have  of  late 
years  attracted  attention  as  bearing  upon  this  important  question,  and  since  the 
