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Book  Reviews. 
Am.  Jour.  Pharm. 
Oct.,  1918. 
BOOK  REVIEWS. 
A  Laboratory  Manual  of  Qualitative  Chemical  Analysis. 
By  A.  R.  Bliss,  Jr.,  M.D.  Ph.G.,  Professor  of  Pharmacology, 
School  of  Medicine,  Emery  University,  Atlanta,  Ga. ;  formerly 
Professor  of  Chemistry  and  Pharmacology,  Graduate  School  of 
Medicine,  University  of  Alabama.    Second  Edition,  Revised  and 
Reset.    194  pages  with  working  tables.    Philadelphia  and  Lon- 
don, W.  B.  Saunders  Co.,  1918.    Cloth,  $2.25  net. 
The  present  book,  designed  "  for  the  use  of  students  of  medi- 
cine, dentistry,  pharmacy  and  science"  is  the  result  of  a  thorough 
revision  of  the  first  edition,  in  the  process  of  which  revision 
changes,  deletions  and  additions  were  made. 
The  subject  matter  is  divided  into  three  parts:  Part  I,  dealing 
with  "The  Metals  or  Cations";  Part  II,  with  "  The  Acids  or 
Anions  " ;  and  Part  III,  with  the  analysis  of  unknowns,  metals  and 
alloys. 
The  first  chapter  of  Part  I,  covering  40  pages,  (1)  gives  a  list  of 
the  apparatus  and  reagents  needed  to  carry  out  the  work  outlined 
in  the  book,  together  with  directions  for  preparing  the  reagents,  (2) 
explains  the  function  of  chemical  analysis,  (3)  gives  a  concise  out- 
line of  the  theories  involved  in  analysis,  (4)  explains  solution,  os- 
motic pressure,  ionization,  neutralization,  electrolytic  and  hydro- 
lytic  dissociation,  mass  action,  etc.,  and  the  effects  these  have  in 
reactions,  and  (5)  closes  with  a  group  classification  of  the  common 
metals,  bases  or  cations.  Of  the  remaining  fourteen  chapters,  each 
of  those  of  even  number  takes  up  a  group  of  metals  and  discusses 
each  metal  as  to  its  symbol,  atomic  weight,  valence  and  most  distinc- 
tive physical  properties,  together  with  tests  for  the  identification  of 
its  ions ;  while  each  of  the  odd-numbered  chapters  treats  of  the  sep- 
aration of  the  ions  of  a  group. 
In  Part  II  the  anions  are  considered  in  three  groups :  Group  A, 
"  Precipitated  from  neutral  solution  by  Barium  Chloride " ;  Group 
B,  "  Precipitated  from  diluted  Nitric  Acid  solution  by  Silver  Ni- 
trate " ;  Group  C,  "  Not  precipitated  by  Barium  Chloride  or  Silver 
Nitrate."  Three  chapters  are  devoted  to  tests  for  the  identification 
of  many  common  anions,  and  a  fourth  chapter  takes  up  the  sys- 
tematic examination  of  unknowns  for  anions. 
Part  III  treats  of  the  examination  of  unknowns  for  both  cations 
