378 
Reviews. 
Am.  Jour.  Pharm. 
July,  1895. 
It  is  the  hope  of  the  undersigned  committee  that  your  association  will  act 
without  delay  in  this  important  matter,  and  thus  enable  the  sentiment  of  the 
retail  drug  trade  of  the  country  'properly  to  make  itself  known,  and  to  assert  its 
due  influence  in  behalf  of  right  legislation  and  against  such  laws  as  may  be 
inimical  to  the  profession  and  trade. 
This  committee  hopes  to  be  favored  with  notice  of  the  appointment  of  the 
committee  suggested,  with  names  and  addresses  of  the  members.  All  com- 
munications relating  to  this  letter  should  be  addressed  to  A.  E.  Ebert,  Secre- 
tary, State  and  Polk  Streets,  Chicago. 
We  have  the  honor  to  be,  with  fraternal  regards, 
William  Bodemann, 
Albert  E.  Ebert, 
George  P.  Engelhard, 
Committee  Chicago  Retail  Druggists'  Association. 
REVIEWS  AXD  BIBLIOGRAPHICAL  NOTICES. 
Katechismus  der  Stochiometrie,  mit  besonderer  Riicksichtname  auf  die 
Bediirfnisse  der  Studierenden  der  Pharmazie,  Medizin  und  Technik.  Sechste 
Auflage.    Albert  und  Hermann  Frickhinger.    Miinchen,  1895.    2S4  Seiten. 
Catechism  of  Stoichiometry,  with  special  reference  to  the  needs  of  students 
of  pharmacy,  medicine  and  technics.  Sixth,  edition.  Albert  and  Hermann 
Frickhinger,  Munich.    1S95.    284  pp. 
The  first  edition  of  this  little  manual  appeared  in  1844,  under  the  authorship 
of  the  elder  Frickhinger,  an  apothecary  of  Nordlingen,  who  continued  it 
through  five  editions,  the  last  appearing  in  1873.  Now,  with  the  aid  of  his 
son,  it  is  again  brought  out  in  a  new  edition,  the  sixth.  The  book  has  been 
very  popular  in  Germany,  and,  indeed,  seems  to  us  to  be  a  very  handy  and 
useful  book  for  the  classes  of  students  referred  to  in  the  title.  It  is  written  in 
the  form  of  a  series  of  questions  and  problems,  to  which  full  answers  and  solu- 
tions are  given,  with  all  needed  explanations.  It  includes  first  simple  arith- 
metical problems,  then  questions  on  the  subjects  of  volume  and  notation  of 
elements  and  the  rules  for  the  formation  and  naming  of  molecules,  the  names, 
formulae  and  molecular  weights  of  all  compounds  likely  to  interest  the  phar- 
macist or  medical  student,  practical  problems  in  volumetric  and  gravimetric 
analysis,  and  lastly,  on  the  main  outlines  of  chemical  theory.  A  very  full 
index  completes  the  work,  and  makes  it  thoroughly  available  for  ready  refer- 
ence. 
On  the  Speed  of  the  Liberation  of  Iodine  in  Mixed  Solutions  of 
Potassium  Chlorate,  Potassium  Iodide  and  Hydrochloric  Acid.  By 
Herman  Schlundt.  Bulletin  of  the  University  of  Wisconsin,  Science  Series, 
Vol.  1,  No.  1.    Madison,  Wis.  1S94. 
We  should  have  more  contributions  like  this  from  our  pharmaceutical 
schools.  The  author  takes  up  a  subject  in  chemical  dynamics  and  system- 
atically pushes  it  to  a  successful  conclusion.  The  results  can  best  be  under- 
stood by  quoting  the  conclusions  as  follows  : 
(1)  The  speed  of  the  reaction  is  influenced  to  a  marked  degree  by  the 
temperature,  the  speed  increasing  with  the  rise  of  temperature. 
