Am.  Jour.  Pharm.  \ 
January,  1909.  J 
Book 
Reviews. 
4i 
Our  pharmacy  laws  need  amendment,  but  they  should  not  be 
changed  at  all  except  in  such  a  way  as  to  relieve  pharmacy  of 
the  unjust  burdens  it  is  laboring  under.  The  American  Pharma- 
ceutical Association  points  the  way. 
I  am  proud  to  be  called  a  pharmacist,  and  heartily  pray  that  all 
pharmacists  may  get  together  and  stand  together  for  real  progress 
and  the  genuine  prosperity  of  our  craft. 
Anv  officer  of  this  Association  will  gladly  furnish  information 
to  candidates  for  membership. 
Fraternally  yours, 
Oscar  Oldberg, 
President. 
zinc  permanganate. 
Editor  American  Journal  of  Pharmacy  : 
Kindly  publish  in  the  next  issue  of  the  Journal  the  following 
correction : 
By  mistake  the  last  equation  in  my  article  in  the  December  issue  of 
this  Journal  was  incorrectly  given  and  should  be  changed  thus  : 
3Ba(Mn04)2+3MnS04=3BaS04+5Mn02+2Mn207 
the  last  formula  reading  2M0I.  permanganic  acid-anhydride  instead 
of  permanganic  acid,  or  in  case  the  reaction  of  the  former  with  water 
is  taken  into  account,  the  equation  should  be  written  as  follows : 
3Ba(M-n04)2+3MnS04+2H20=3BaS04+5Mn02+4HMn04 
GUNNAR  HEIKEL. 
Norwich,  N.  Y. 
BOOK  REVIEWS. 
A  Text-Book  of  Botany  and  Pharmacognosy.  Intended  for 
the  use  of  students  of  pharmacy,  as  a  reference  book  for  pharma- 
cists, and  as  a  hand-book  for  food  and  drug  analysts.  By  Henry 
Kraemer,  Ph.B.,  Ph.D.,  Professor  of  Botany  and  Pharmacognosy, 
and  Director  of  the  Microscopical  Laboratory,  in  the  Philadelphia 
College  of  Pharmacy;  member  of  the  Committee  of  Revision  of 
the  "  United  States  Pharmacopoeia  " ;  corresponding  member  of  the 
Societe  de  Pharmacie  de  Paris,  etc.  Illustrated  with  over  300  plates 
comprising  about  2000  figures.    Third  revised  and  enlarged  edition. 
