Am.  Jour.  Pharm.) 
April.  1906.  J 
Book  Reviews. 
191 
BOOK  REVIEWS. 
A  Text-Book  of  Physiological  Chemistry  for  students  of  medi- 
cine. By  John  H.  Long,  Professor  of  Chemistry  in  Northwestern 
University  Medical  School.  Illustrated.  Philadelphia :  P.  Blakis- 
ton's  Son  &  Co.  $2.50. 
For  over  thirty  years  Dr.  Long  has  been  a  constant  contributor 
to  sanitary  science.  His  papers  on  the  chemistry  of  urine,  feces  and 
water  have  been  numerous  and  extremely  valuable.  It  was  hardly 
likely  that  one  who  is  so  versed  in,  and  whose  contributions 
form  such  an  important  part  of,  the  literature  of  physiological 
chemistry  would  write  a  book  on.  this  subject  without  it  being  of 
more  than  ordinary  interest. 
As  a  matter  of  fact  the  work  has  a  number  of  meritorious  features. 
In  the  first  place  it  is  written  for  medical  students  only.  While  it 
may  be  used  profitably  by  other  classes  in  which  chemistry  is  taught 
it  is  primarily  intended  for  students  in  medicine.  In  the  second 
place  it  is  written  for  medical  students  who  have  completed  courses 
in  the  elements  of  general  inorganic  and  organic  chemistry.  It 
therefore  comes  to  us  not  as  a  book  which  contains  much  of  what 
has  been  written  over  and  over  again  in  the  hundreds  of  books  on 
chemistry,  but  as  a  work  with  a  message  ot  its  own  which  the  author 
is  well  able  to  give. 
Dr.  Long's  book  is  divided  into  five  parts:  (1)  An  introduction, 
including  scope  and  methods.  (2)  Four  chapters  devoted  to  the 
consideration  of  the  nutritives.  (3)  Five  chapters  in  which  the  fer- 
ments and  digestive  processes  are  taken  up.  (4)  The  chemistry  of 
the  blood,  tissues  and  secretions  of  the  body  are  considered  in  eight 
chapters.  (5)  In  three  final  chapters  the  author  discusses  the  end 
products  of  metabolism.  There  is  a  good  outline  of  the  chemical 
phases  of  the  recent  theories  of  immunity  ;  and  a  short  explanation 
of  the  important  application  of  the  methods  of  cryoscopy,  elec- 
trical conductivity  and  other  physical  processes,  in  the  field  of 
chemistry  related  to  medicine.  A  considerable  number  of  illustra- 
tive experiments  are  given  in  the  text.  There  are  thirty-two 
illustrations  and  an  excellent  index. 
The  Elements  of  Physical  Chemistry.  By  Prof.  J.  Livingston 
R.  Morgan,  Columbia  University.    i2mo,  xii  -f  510  pages.  Cloth, 
