94  Editorial— Reviews,  etc.  {A%^87^.rm' 
An  inspection  of  this  table  shows  that  there  exists  no  relation  between  the  iveight 
of  a  drop  of  a  liquid  and  its  density." 
We  have  similar  tables  enough  of  this  so-called  approximate  measure  by  drops. 
A  table  giving  the  relation  of  the  weight  and  measure  of  the  drops  of  different 
liquids  was  prepared  nearly  fifty  years  ago  by  the  late  E.  Durand,  and  published  in 
the  first  volume  of  this  journal  (see  also  Griffith's  "Formulary"  (3d  edit.,  p.  29). 
Those  who  desire  to  be  informed  of  the  different  size  of  drops  are  referred  to  the 
tables  in  "  Parrish's  Pharmacy,"  4th  edit.,  p.p.  79,  80,  where  it  will  also  be  found 
that  a  difference  of  from  30  to  100  per  cent,  in  the  number  of  drops  for  the  same 
measure  is  by  no  means  uncommon,  as  obtained  with  the  same  liquid  under  different 
conditions. 
REVIEWS  AND  BIBLIOGRAPHICAL  NOTICES. 
Proceedings  of  the  American  Pharmaceutical  Association  at  the  Twenty-fourth  Annual 
Meeting,  held  in  Philadelphia,  Pa.,  September,  1876.  Also,  the  Constitution  and 
By-Laws  and  Roll  of  Members.  Philadelphia:  Sherman  &  Co.,  Printers,  1877. 
8vo,  pp.  909.    Price,  cloth,  $7.50. 
With  .the  view  of  keeping  the  size  of  the  volume  within  convenient  limits,  the 
Executive  Committee  has  adopted  a  smaller  type  than  had  heretofore  been  used  ; 
but,  notwithstanding  this,'  the  volume  before  us  exceeds  by  ten  pages  the  preceding 
issue. 
As  usual,  a  considerable  portion  of  the  book — 392  pages — is  occupied  by  the 
excellent  report  of  Prof.  Diehl  on  the  Progress  of  Pharmacy,  giving,  in  a  condensed 
form,  the  results  of  the  investigations  and  observations  in  pharmacy  and  the 
collateral  sciences  during  the  year  closing  with  June  30th,  18765  the  following  48 
pages  being  the  reports  of  the  various  committees,  and  the  next  120  pages  the 
papers  read  at  the  last  meeting,  and  of  most  of  which  we  have  given  a  brief  abstract 
in  our  October  number.  A  list  of  books  and  pamphlets  on  pharmaceutical 
subjects,  published  during  the  year,  has  been  prepared  by  Prof.  Diehl,  and  is 
followed  by  the  minutes  and  discussions,  which,  with  the  President's  address,  occupy 
142  pages.  Nearly  as  voluminous  is  the  report  of  the  Committee  on  the  Centen- 
nial Exhibition,  which  gives  a  pretty  complete  list  of  the  articles  having  special 
pharmaceutical  interest  which  were  exhibited  at  Fairmount  Park;  the  last  160  pages 
being  the  list  of  exchanges,  Constitution  and  By-Laws,  roll  of  members  and  index, 
an  alphabetical  list  of  members  being  printed  for  the  first  time  with  this  volume. 
A  very  excellent  likeness,  printed  from  a  steel  engraving,  of  the  late  John 
Milhau  ;  a  well-executed  lithographic  plate  of  13  vesicating  beetles,  nearly  all  indige- 
nous to  this  continent ;  and  very  correct  plates  of  Eriodyction  Californicum,  the 
new  remedy  for  pectoral  complaints,  and  of  Rheum  officinale,  one  of  the  sources  of 
Chinese  rhubarb,  embellish  the  volume,  besides  50  wood-cuts,  in  illustration  of 
apparatus,  drugs,  chemicals,  etc. 
Taking  everything  together,  the  present  volume  is  very  creditable  to  the  Associ- 
ation, and  forms  not  only  the  largest  and  handsomest,  but,  we  believe,  likewise  one 
of  the  most  useful,  when  compared  with  its  predecessors.    The  complete  and  well- 
