Am.  Jour.  Pbarm.  | 
December,  1911.  \ 
Book  Reviews. 
581 
proper  appreciation  of  the  influence  of  the  position  of  the  elements 
in  the  electro-chemical  series  and  the  application  of  the  valences  of 
the  atoms  in  the  uniting  of  formulas  of  compound  molecules,  starting 
with  the  formula  of  binary  molecules,  and  gradually  leading  up  to 
the  more  complicated  ternary  molecules."  These  principles  are 
clearly  presented  by  Professor  Moerk,  and  while  we  have  numerous 
works  dealing  with  the  subject  of  qualitative  analysis  none  is  better 
adapted  to  needs  of  pharmacy  students  than  the  pamphlet  in  hand. 
In  the  second  part,  entitled  "  Courses  in  Quantitative  Analysis 
and  Chemical  Mathematics,"  attention  is  given  to  the  methods  for 
gravimetric  determinations,  volumetric  determinations,  gasometric 
determinations,  organic  analysis,  alkaloidal  assays,  the  determination 
of  oils,  fats  and  waxes,  and  the  analysis  of  milk,  vinegars  and 
coloring  matter.  The  portion  dealing  with  "  Chemical  Mathematics  " 
is  a  valuable  part  of  the  book. 
A  Pocket  Medical  Dictionary.  By  Dr.  George  M.  Gould. 
Sixth  edition,  revised  and  enlarged.  Philadelphia :  P.  Blakiston's 
Son  &  Co.,  1012  Walnut  St.    1911.    $1.00  net. 
This  is  probably  one  of  the  best,  if  not  the  best,  book  of  its  class. 
It  is  of  very  convenient  size,  and  the  definitions  are  very  succinct 
and  clear  cut.  The  author  is  the  prince  of  medical  dictionary  makers, 
and  it  is  doubtful  if  Dr.  Gould's  work  in  this  respect  has  ever  been 
surpassed.  The  professional  man  needs  dictionaries  and  the  less 
space  they  take  and  the  more  convenient  they  are,  the  more  they 
will  be  used  and  the  less  will  one  have  the  necessity  of  regretting 
the  misuse  or  misspelling  of  words. 
Books  for  Pharmacists,  Edited  by  Harry  B.  Mason,  Editor 
of  the  Bulletin  of  Pharmacy,  Detroit,  Michigan :  E.  G.  Swift. 
Three  very  interesting  books  have  recently  come  from  the  press 
of  The  Bulletin  of  Pharmacy.  They  concern  the  retail  druggist  and 
should  prove  very  suggestive  to  him.  One  of  these  is  on  Window 
Displays  for  Druggists,"  the  second  edition  of  which  has  been  re- 
cently published.  This  comprises  for  the  most  part,  engravings  and 
descriptions  of  over  a  hundred  attractive  displays  which  have  been 
used  with  success  by  druggists  throughout  the  United  States.  It 
also  contains  some  useful  suggestions  on  the  subject  of  window 
dressing  in  general.    While  of  course  it  is  not  expected  that  phar- 
