Am.  Jour.  Pharm.  \ 
January,  1915.  J 
Book  Reviews. 
37 
in  1910  to  perhaps  225  acres  in  1912,  while  the  yield  rose  from  2800 
pounds  in  the  former  to  6700  pounds  in  the  latter  year.  In  view  of 
the  fact  that  October  is  the  time  of  harvest  and  that,  with  the  dimin- 
ished or  disappearing  supply  of  thymol,  the  demand  will  probably 
be  still  further  increased,  every  effort  should  be  made  not  only  to 
husband  this  year's  crop  to  the  best  advantage,  but  to  provide  for  a 
largely  increased  seeding  next  spring. 
Physicians  having  hookworm  cases  under  their  care  should  give 
this  remedy  a  thorough  trial  and  report  promptly  their  results  in  the 
medical  journals.  Case  notes  should  be  accompanied  by  information 
as  to  the  sources  of  the  oil  used  and,  if  possible,  as  to  the  method  of 
its  distillation ;  it  has  been  alleged  that  chenopodium  grown  in  dif- 
ferent localities,  and  oils  distilled  by  different  processes  have  shown 
varying  degrees  of  efficacy.  For  use  in  the  South,  where  the  plant 
grows  as  a  weed,  the  possible  efficacy  of  a  decoction,  made  by  boiling 
one  ounce  of  the  fresh  plant  in  a  pint  of  milk  or  water,  administered 
in  wineglass ful  doses,  should  be  remembered  and  tried  under  careful 
supervision.  Data  of  this  kind  should  aid  in  rehabilitating  a  truly 
American  remedy,  said  to  have  been  used  by  the  Indians  as  a  vermi- 
fuge before  the  landing  of  Columbus,  and  in  helping  the  American 
profession  to  do  without  some  of  the  products  which,  hitherto,  have 
been  almost  wholly  "  made  in  Germany." 
BOOK  REVIEWS. 
Essentials  of  Botany,  by  Charles  E.  Bessey  and  Ernst  A. 
Bessey.  With  306  diagrammatic  illustrations.  New  York :  Henry 
Holt  and  Company. 
This  new  volume  is  to  be  considered  as  the  eighth  edition  of  the 
Essentials  of  Botany  by  Doctor  Bessey,  and  is  entirely  rewritten.  The 
book  consists  of  three  parts ;  namely,  morphology,  physiology,  and 
the  classification  of  plants.  Morphology  is  considered  in  the  first 
three  chapters,  which  are  devoted  to  the  consideration  of  protoplasmic 
contents,  plant  cells,  the  tissues  of  plants,  and  the  tissue  system.  This 
portion  of  the  book  is  characterized  by  a  number  of  laboratory  studies 
and  titles  of  books  of  reference,  making  it  of  great  value  in  those 
courses  where  practical  laboratory  work  is  given.  This  is  one  of  the 
excellent  features  of  the  book.  The  time  has  gone  by  when  a  course 
in  botany  can  be  considered  adequate  unless  provision  is  made  for  a 
