Am.  Jour.  Pharm.  ) 
September,  1909.  / 
Book  Review. 
427 
ciples,  indicators,  apparatus,  methods  of  calculations,  classification 
of  analyses  according  to  the  chemical  principles  involved,  and  typicil 
analyses  by  the  various  volumetric  solutions. 
Part  II  applies  volumetric  methods  to  the  analysis  of  the  more 
important  metals  and  of  some  acids  and  their  salts,  although  most 
of  the  acids  and  the  alkalies  are  included  in  Part  I  under  Neutral- 
ization Analysis. 
Part  III  is  devoted  to  sanitary  analysis  and  the  volumetric 
analysis  of  organic  medicinal  substances :  water ;  dairy  products ; 
fats,  oils  and  soaps ;  sugars ;  alkaloidal  assays ;  galenicals ;  urine,, 
etc.,  etc. 
Part  IV  is  devoted  to  a  few  of  the  more  important  gasometric 
determinations. 
The  fundamental  chemical  principles  upon  which  volumetric 
analysis  is  based  and  the  calculations  involved  have  been  presented 
with  unusual  care  and  the  student  is  enabled  to  work  out  and  verify 
for  himself  figures  and  factors  instead  of  following  mechanically 
(as  is  too  often  the  case)  those  given  in  tables. 
There  are  a  number  of  useful  and  convenient  tables,  including 
the  usual  factor  tables  and  those  for  temperature  and  pressure  cor- 
rections for  gases,  although  a  table  of  tension  of  aqueous  vapor  at 
different  temperatures  is  omitted.  Tables  of  color  changes  of 
indicators  with  acids  and  alkalies,  one  showing  behavior  of  some 
alkaloids  with  some  indicators  and  another  serving  as  a  guide  in 
the  choice  of  indicators  for  acids  and  alkalies,  are  valuable  features. 
A  table  of  specific  gravities  and  percentages  of  acetic  acid  is  included 
and  in  this  connection  it  seems  unfortunate  that  similar  tables  for 
the  common  inorganic  acids  and  ammonia  water  were  omitted. 
The  methods  given,  especially  in  Parts  II  and  III,  are  suffi- 
ciently numerous  to  meet  the  requirements  of  most  chemists, 
but  the  value  of  the  book  as  a  reference  work  is  further  enhanced 
by  the  numerous  bibliographical  references. 
Taken  as  a  whole  the  book  will  be  found  a  valuable  aid  to  any 
chemist  and  no  less  so  to  the  student  of  analytical  chemistry. 
J.  W.  Ehman. 
