As^ptJe°mberhi89™"}    British  Pharmaceutical  Conference.  5QI 
RADIOGRAPHY. 
By  I,eo  Atkinson. 
In  this  communication  the  author  gave  a  brief  sketch  of  the  rise  and  uses  of 
X-ray  photography,  and  observed  that  the  variability  in  transmission  of  X-rays 
by  different  bodies  is  not  a  more  pronounced  phenomenon  than  the  well- 
known  diathermic  properties  of  many  bodies.  He  claimed  that  the  knowledge 
of  chemistry  and  physics  possessed  by  the  pharmacist  makes  him  specially 
qualified  to  undertake  the  practice  of  radiography,  and  referred  to  some  of  the 
discoveries  made  by  this  means,  stating  that  many  sophistications  of  foods  and 
drugs  can  be  detected  by  its  aid. 
NOTE  ON  THE  STRENGTH  OF  SOME  OF  THE  SUCCI. 
By  H.  Farr  and  R.  Wright. 
The  authors'  attention  was  drawn  to  this  class  of  preparations  by  an  expe- 
rience with  a  stock  sample  of  succus  conii,  which,  upon  examination,  was 
found  to  be  practically  valueless.  Five  samples  (in  two  cases  six)  of  the  fol- 
lowing succi  were  examined  :  Belladonnae,  conii,  hyoscyami  and  scoparii.  The 
results  indicated  that  the  average  strength  of  succus  belladonnae  is  almost  twice 
as  great  as  that  of  the  tincture,  while  that  of  succus  conii  and  succus  hyoscy- 
ami is,  in  each  case,  much  below  the  average  of  the  corresponding  tincture. 
NOTE  ON  CONCENTRATED  HYDROBROMIC  ACID. 
By  Charles  T.  Tyrer. 
It  was  stated  that  an  examination  of.  this  acid  for  sulphur  compounds  was 
attended  with  negative  results.    The  conclusion  was  reached  that  a  specific 
gravity  of  1*250  should  be  the  highest  degree  of  concentration  for  the  official 
acid. 
NOTE  ON  HYPOPHOSPHOROUS  ACID. 
By  Charles  T.  Tyrer. 
The  author  commented  on  several  of  the  processes  for  the  preparation  of  this 
acid,  but  was  of  the  opinion  that  the  acid  made  by  the  careful  decomposition  of 
barium  hypophosphite  by  dilute  sulphuric  acid  is  the  best.  It  was  found  not 
to  deposit  on  long  standing,  and  when  of  a  specific  gravity  of  i'i37  contained 
30  per  cent,  of  pure  hypophosphorous  acid. 
A  SAFETY  PIPETTE. 
By      W.  IyUCAS. 
This  instrument  consisted  of  an  ordinary  pipette,  with  a  somewhat  elongated 
mouthpiece,  with  two  constrictions  about  an  inch  apart.  The  upper  constriction 
was  ground  smooth  inside,  the  lower  one  was  imperfect,  while  between  the  two 
was  a  loosely-working  glass  plug.  The  pipette  was  operated  in  the  usual  way, 
and  when  the  liquid  reached  the  plug  this  was  forced  into  the  second  constriction 
which  it  fit  accurately,  thus  preventing  the  farther  rise  of  the  liquid. 
CASCARIIvLIN. 
By  W.  A.  H.  Naylor  and  R.  D.  L,ittlefield. 
The  work  of  the  authors  was  two-fold — to  determine  the  true  character  of  the 
cascarilliu  obtained  by  Allessandri  with  the  use  of  oxalic  acid,  and  to  see  how 
far  this  body  and  the  cascarilliu  of  Duval  corresponded  in  composition  to  the 
formula  of  C.  and  E.  Mylius.    The  product  obtained  by  Allessandri's  process 
