5 1  o  Editorial. — Reviews,  etc.  { Am'S™%£7\&rm' 
em,  Middle  and  Western  States,  and  it  is  particularly  desirable  that  all  those  who 
may  have  been  appointed  delegates  should  be  present.  The  Secretary  has  already 
received  many  letters  from  members  signifying  their  intention  not  only  of  going 
themselves,  but  likewise  of  urging  the  lukewarm  to  remove  the  little  obstacles  which 
may  be  in  the  way  and  threaten  to  interfere  with  the  visit  to  Atlanta.  Many  ladies 
are  expected  to  accompany  the  members  and  delegates,  and  there  will  be  no  diffi- 
culty in  arranging  pleasant  excursion  parties  by  those  who  feel  a  desire  to  visit  one 
of  the  fairest  sections  of  the  South  at  a  season  when  in  the  more  northern  States 
the  severity  of  the  wintery  season  is  already  beginning  to  be  felt. 
While  we,  therefore,  on  the  one  hand,  look  confidently  for  agreeable  social  enjoy- 
ment in  company  with  the  friends  of  the  Association,  we  believe  also  that  the  intel- 
lectual treat  will  well  repay  a  visit  to  Atlanta.  Many  reports  and  papers  of  scien- 
tific and  genera!  interest  will  be  read  ;  several  members  who  it  was  feared  would  be 
prevented  from  coming  if  the  meeting  was  held  later  than  September  will  be  present, 
and  the  exhibition  of  objects  of  pharmaceutical  interest  is  promising  to  prove  quite 
an  attraction  ;  a  valuable  contribution  to  this  meeting  will  be  a  collection  of  Cali- 
fornia drugs  which  have  been  forwarded  by  Mr.  J.  G.  Steele,  of  San  Francisco,  and 
we  hear  of  other  exhibits  being  prepared  in  various  places  besides  those  which  have 
already  been  forwarded  and  have  been  in  the  custody  of  the  Local  Secretary  foj 
more  than  a  month. 
In  referring  to  the  official  announcement  of  the  President,  which  we  print  in 
another  place,  we  take  occasion  to  urge  upon  the  members  living  in  the  Eastern, 
Northern  and  Western  sections  to  rally  in  force  and  now  begin  the  preparations  for 
a  visit  to  Atlanta  on  the  26th  of  November.  They  may  be  sure  of  a  hearty  South- 
ern welcome. 
REVIEWS  AND  BIBLIOGRAPHICAL  NOTICES. 
Elementary  ^uantitatiue  Analysis.  By  Alexander  Classen,  Professor  in  the  Royai 
Polytechnic  School,  Aix  la-Chapelle.  Translated,  with  additions,  by  Edgar  F. 
Smith,  A.  M.,  Ph.D.,  Assistant  in  Analytical  Chemistry  in  the  Towne  Scientific 
School,  University  of  Pennsylvania.  Philadelphia:  Henry  C.  Lea,  1878.  Pp. 
328. 
Classen's  little  work  on  quantitative  analysis  has  deservedly  met  with  much 
favor,  as  being  well  adapted  for  the  introduction  into  that  difficult  branch  of  chem- 
istry, viz.,  the  complete  separation  of  the  different  elements  from  one  another,  in 
such  combinations  that  each  may  be  correctly  determined  by  weight.  The  method 
chosen  by  the  author  is  that  of  teaching  by  means  of  examples,  commencing  with 
simple  compounds,  followed  by  methods  of  separation,  the  determination  of  alloys, 
minerals,  waters,  ashes  and  a  number  of  products  largely  employed  in  the  arts. 
From  this  brief  sketch  it  will  be  observed  that  the  work  is  in  the  first  place  intended 
as  an  aid  to  the  student  on  his  first  entry  into  the  department  of  quantitative  analy- 
sis 5  at  the  same  time,  however,  it  will  be  found  a  useful  work  of  reference  to  the 
more  advanced  student  and  to  the  practical  analyst,  inasmuch  as  it  points  out  pro- 
cesses and  methods  of  separation  which  may  find  frequent  application.    While  the 
