546 
Book  Reviews. 
/Am.  Jour.  Pharm. 
I  November,  1906. 
for  the  examinations  to  be  held  by  such  State  boards  of  pharmacy 
as  may  avail  themselves  of  the  services  of  said  committee. 
(13)  We  recommend  to  all  concerned  that  the  foregoing  princi- 
ples and  standards  be  adhered  to  in  any  amendments  to  the  pharmacy 
laws  hereafter  proposed  in  order  that  national  uniformity  may  be 
ultimately  attained.  The  minimum  requirements  indicated,  and 
especially  the  preliminary  general  education,  should  be  increased 
from  time  to  time  as  circumstances  permit.  We  further  strongly 
urge  that  the  boards  of  pharmacy  employ  the  discretionary  powers 
already  theirs  under  existing  laws  to  improve  the  educational  status 
of  the  pharmacists  of  the  future. 
BOOK  REVIEWS. 
A  Text- Book  of  Chemistry.  By  Prof.  Samuel  P.  Sadtler  and 
Prof.  Virgil  Coblentz.  Fourth  edition.  Revised  and  rewritten. 
Philadelphia:  J.  B.  Lippincott  Company.  1906. 
Sadtler  and  Coblentz's  text-book  of  chemistry — revised  and  re- 
written— has  just  been  issued.  Those  who  have  used  the  previous 
editions  with  profit  will  find  the  same  concise  and  masterly  treat- 
ment in  this  volume  which  characterized  the  earlier  editions.  The 
first  part,  treating  of  Elementary  Physics,  has  been  entirely  re- 
written and  is  in  accord  with  the  accepted  views  in  regard  to  the 
nature  of  matter,  and  energy  in  its  several  forms  of  action.  The 
chapters  on  electricity  are  particularly  interesting  and  valuable, 
forming,  as  they  do,  a  concise  and  up-to-date  treatment  of  not  only 
the  modern  principles  underlying  this  study,  but  the  most  recent 
applications — particularly  of  electro-chemistry — in  the  manufacture 
of  organic  and  inorganic  compounds.  The  electrolytic  methods  for 
the  preparation  of  the  hypochlorites,  ozone,  carbides,  iodoform, 
chloroform,  chloral,  saccharine  and  many  technical  products  are 
given  quite  fully.  A  very  valuable  table  on  electro-chemical  equiva- 
lents has  also  been  included  in  the  chapter  on  Electrolysis  and  its 
application. 
The  part  on  the  chemistry  of  the  non-metals  and  metals  has  also 
been  in  great  part  re-written.  This  also  is  full  of  interesting  infor- 
mation on  many  subjects,  such  as  the  recently  discovered  atmospheric 
gases,  the  rare  earths  and  metals,  radioactive  elements,  the  metallic 
