grs. 
(( 
5 
2 
u 
1 
no  Bevww.  l^'Ma'Sl^TsT- 
After  complete  dessication  the  residua  weighed  as  follows : 
The  albumen  which  had  undergone  no  digestion  weighed 
That  digested  in  Houghton's,  ,        .        .        .  . 
"  Grimault's,  ..... 
"  Boudault's,  ..... 
Hawley's,  ..... 
Now  since  it  appears  that  one  grain  of  dry  is  equal  to  eight  grains 
of  fresh  coagulated  albumen,  it  follows  that 
Houghton's  pepsin  is  entirely  negative,  or  digested  nothing. 
Grimault's  digested    ......    20  grs. 
Boudault's   4:4:  " 
Hawley's         "  52  " 
One  grain  of  Grimault's  pepsin  digested  .  .  .4  grs. 
Boudault's  "  .  .  .      8i  " 
"         Hawley's  "  ...    10|  " 
Grimault's  digested  of  the  albumen,    .  .  -In 
Boudault's  "  .  .  .  II 
Hawley's  "  .  .  .  |-§ 
This  last  comparison  between  Boudault's  and  Hawley's  pepsins 
agrees,  within  a  very  small  fraction,  with  my  digestive  test  upon  fresh 
beef,  made  more  than  a  year  ago,  and  published  in  my  circular.  This 
circumstance  is  somewhat  corroborative  of  the  correctness  of  both 
J.  S.  Hawley,  M,  D. 
Brooklyn,       Y.,  Feb.  ISth,  1871. 
REVIEW. 
Taschenbuch  der  Gelieimmittellehre.  Eine  kritische  UehersicM  aller  his  jetzt 
untersuchten  Geheimmittel.  Herausgegehen,  von  Dr,  G.  0.  Wittstein.  3e 
vermehrte  Auflage.    Nordlingen,  1871. 
[Handbook  of  Secret  Medicines.  A  critical  review^  of  all  the  secret  medi- 
cines analyzed  until  the  present  time.    Third  enlarged  edition. 1 
The  fact,  that  in  about  four  years  this  little  work  has  reached  its 
third  edition,  is  sufficient  proof  that  the  labors  of  the  author  have 
been  appreciated.  Wittstein  is  an  unrelenting  enemy  of  the  nefarious 
industry  in  nostrums.  Having  himself  analyzed  quite  a  number,  or 
caused  them  to  be  examined  by  his  pupils  and  others,  he  was  peculi- 
arly fitted  for  this  critical  compilation,  which  embraces  also  the  labors 
9 
