Am'ju]y';Srm*}    American  Pharmaceutical  Association.  359 
laboratory  of  the  University  of  Turin,  on  the  determination  of  the  nitrogen  in 
organic  substances. 
Studies  on  the  Centra  l,  and  Peripheral  Nervous  Systems  oe  two 
Polych^ETE  Annelids.  By  Margaret  Lewis.  Reprint  from  Proc.  Am.  Acad. 
Arts  and  Sci.,  April,  1898. 
This  is  a  contribution  from  the  zoological  laboratory  of  the  Museum  of  Com- 
parative Zoology  at  Harvard  College,  under  the  direction  of  E.  Iv.  Mark.  The 
author  finds,  among  other  things,  a  centrosome  in  the  ganglion  cells.  This 
argues  for  the  function  of  the  centrosome  other  than  that  of  an  organ  of  divi- 
sion, and  is  in  favor  of  its  being  a  permanent  cell  organ. 
The  OrthopTeran  Group  Scudderi/E.  By  Samuel  H.  Scudder.  Re- 
printed from  the  Proc.  Amer.  Acad.  Arts  and  Sci.,  April,  1898. 
The  author  has  examined  more  than  650  specimens  of  the  genus  Scudderia 
alone. 
AMERICAN  PHARMACEUTICAL  ASSOCIATION. 
The  following  announcement  from  the  Chairman,  Dr.  Ed.  Kremers,  of  the 
Committee  on  Scientific  Papers  of  the  American  Pharmaceutical  Association 
has  been  received  : 
In  order  that  the  members  of  the  American  Pharmaceutical  Association  may 
derive  the  greatest  possible  benefit  from  the  papers  to  be  presented  before  the 
Scientific  Section  at  the  Baltimore  meeting  of  the  Association,  the  committee 
charged  with  the  work  of  the  Section  desires  to  make  the  following  announce- 
ment : 
(1)  Committees  in  the  past  have  not  always  been  able  to  arrange  the  pro- 
grammes to  their  own  satisfaction  or  that  of  others,  largely  because  many 
persons  who  desired  to  present  papers  did  not  send  to  the  committee  the 
necessary  information.  The  committee  for  1898,  therefore,  requests  that  an 
abstract  of  each  paper  to  be  read  before  the  Section  be  sent  to  the  Chairman 
on  or  before  August  15th.  Inasmuch  as  an  abstract  can  be  prepared  even  before 
the  paper  is  in  final  shape  for  reading  or  publication,  this  request  does  not  seem 
to  involve  any  hardship  or  injustice.  In  arranging  the  programme,  preference 
will  naturally  be  given  to  those  papers  whose  authors  have  complied  with  this 
request. 
(2)  Authors  of  papers  are  further  requested  to  state  on  the  abstract  how 
much  time  they  will  require  for  a  satisfactory  presentation  of  their  subject. 
By  adhering  strictly  to  the  ten-minute  rule,  some  authors  have  had  time  to 
read  their  papers  twice  within  the  allotted  time,  whereas  others  with  broad 
subjects  were  hampered  in  their  presentation  through  lack  of  time,  even  if  the 
time  allotted  according  to  rule  by  the  chairman  was  graciously  extended  by  the 
Section.  In  the  presentation  of  papers,  authors  will  please  bear  in  mind  that 
a  more  general  presentation  of  many  subjects  is  of  greater  value  to  a  mixed 
scientific  audience  than  a  discussion  of  a  host  of  details,  which,  though  very 
valuable,  may  interest  only  very  few. 
(3)  The  object  of  scientific  gatherings  is  not  so  much  to  read  papers,  for  they 
can  be  read  more  satisfactorily  at  home  when  in  print.  The  principal  object 
of  such  gatherings  is  to  bring  men  interested  in  related  lines  of  work  together 
