Am.  Jour.  Pharm.  \ 
March,  19 18.   •  ■> 
Book  Reviews. 
227 
have  realized  very  fully  in  the  present  edition.  The  subject  matter 
is  systematically  arranged  and  treated  concisely,  yet  with  such  a 
clarity  of  expression  as  to  make  it  easy  for  the  student  to  com- 
prehend. 
The  first  seven  chapters  of  Part  I  deal  with  the  general  chem- 
ical principles  underlying  volumetric  analysis,  the  significance  and 
use  of  standard  solutions,  indicators  and  the  ionic  theories  regarding 
their  action,  description  of  volumetric  apparatus  and  its  uses,  to- 
gether with  methods  for  calculating  results  of  analyses.  The  re- 
maining three  chapters  treat,  respectively,  of  analysis  by  neutraliza- 
tion, by  precipitation,  and  by  oxidation  and  reduction.  In  addition 
to  working  directions  for  the  preparation  of  the  necessary  solutions, 
both  of  reagents  and  the  substances  to  be  analyzed,  each  of  these 
chapters  gives  special  directions  for  the  analysis  of  a  large  number 
of  individual  substances,  together  with  much  other  information, 
much  of  it  arranged  in  tabular  form. 
Part  II,  comprising  seven  chapters,  treats  of  the  estimation  of 
alkaloids,  phenolic  substances,  sugars,  formaldehyde,  alcohol  in 
alcoholic  liquids,  as  well  as  of  assay  methods  for  vegetable  drugs 
and  their  preparations,  and  technical  methods  for  analyzing  fats, 
oils  and  waxes. 
Part  III,  comprising  five  chapters,  treats  of  the  gasometric 
analysis  of  nitrites,  nitrates,  hydrogen  dioxide,  insoluble  carbonates, 
and  urea  (in  urine). 
An  Appendix  describes,  more  or  less  briefly,  nineteen  sub- 
stances commonly  used  as  indicators  in  analysis  by  neutraliza- 
tion, giving,  in  each  case,  the  source,  color  in  acid  and  alkaline  solu- 
tion, uses,  limitations,  and  strength  of  solution  ordinarily  used. 
The  subject  matter  of  the  book,  so  far  as  it  deals  with  official 
substances,  is  in  conformity  with  that  of  the  U.  S.  P.,  IX,  and  the 
term  "mil"  replaces  the  term  "c.c."  of  previous  editions. 
Though  primarily  intended  for  the  use  of  students  in  schools 
of  pharmacy,  the  volume  is  one  which  is  well  worth  a  prominent 
place  in  the  laboratory  library  of  the  pharmacist,  or  anyone  else, 
who  does  anything  at  all  in  the  way  of  quantitative  analysis. 
F.  P.  Stroup. 
A  Critical  Revision  of  the  Genus  Eucalyptus.  By  J.  H. 
Maiden,  I.S.O.,  F.R.S.,  F.L.S.,  Government  Botanist  of  New  South 
Wales  and  Director  of  the  Botanic  Gardens,  Sydney.    Vol.  IV, 
