490  American  Pharmaceutical  Association.  {Aoctobef.Pimm' 
The  paper  also  contains  a  review  of  the  literature  and  a  resume 
of  the  previous  work  done  in  connection  with  the  isolation  of  the 
active  principle  of  the  suprarenal  gland. 
Determination  of  Phosphorus  in  Phosphorated  Resin  and  in 
other  Pharmaceutical  Preparations. 
By  Joseph  L.  Turner  and  Charles  E.  Vanderkleed. 
The  phosphorus  is  oxidized  with  nitric  acid ;  the  organic  matter 
is  oxidized  by  the  Kjeldahl  method  and  the  phosphorus  finally 
determined  as  magnesium  pyrophosphate. 
A  Simple  Method  of  Testing  Pepsin. 
By  Frank  R.  Eldred  and  W.  C.  Bartholomew. 
A  comparison  of  the  results  obtained  in  testing  several  commercial 
pepsins  by  the  methods  of  the  seventh  and  eighth  revisions  of  the 
U.S.P.,  and  by  methods  based  upon  the  amounts  of  peptones  and 
albumoses  formed  in  solutions  and  suspensions  of  egg-white  during 
definite  periods. 
Detection  of  Small  Quantities  of  Copper  and  Iron  in  Glycerin. 
By  S.  K.  Kahn. 
This  paper  was  read  by  Dr.  C.  B.  Lowe  and  describes  a  method 
for  absorbing  the  salts  of  copper,  present  in  hot  solutions,  by  means 
of  stearic  acid. 
Cactus  Grandiflorus. 
By  L.  E.  Sayre. 
A  study  of  the  constituents  of  the  drug.  Authentic  material  was 
obtained,  consisting  of  the  stems  of  the  plant.  Five  pounds  of  the 
fresh,  finely  chopped  stems  were  properly  extracted.  The  resulting 
tincture  was  examined  and  a  special  study  of  the  physiological 
action  of  the  preparation  was  given.  The  whole  work  was  per- 
formed with  reference  to  the  question  before  the  Committee  of 
Revision  of  the  Pharmacopoeia :  Shall  Cactus  be  admitted  into  our 
official  standard  ? 
A  number  of  tracings  presented  in  connection  with  this  paper 
were  further  explained  by  Dr.  Reid  Hunt. 
Method  for  the  Assay  of  Ointments  Containing  Extracts  of 
Belladonna,  Stramonium  and  Henbane. 
By  Charles  E.  Vanderkleed. 
