Am.  Jour.  Pharm.) 
September,  1907.  / 
Progress  in  Pharmacy. 
419 
British  and  Colonial  Druggist,  and  will  no  doubt  prove  interesting  as 
illustrating  the  nature  and  the  content  of  the  several  papers : 
Animal  Charcoal. — Dr.  Knecht  showed  that  the  decolorizing  power 
of  animal  charcoal  was  in  direct  ratio  to  the  nitrogen  contained. 
Plants  and  Disease, — Professor  Weiss  gave  an  interesting  com- 
munication dealing  with  the  methods  of  immunizing  plants  to 
certain  diseases. 
Alkali  in  the  Ash  of  Drugs. — To  determine  this,  Mr.  F.  H.  Alcock 
recommends  a  modification  of  the  lead  method  described  in  Frese- 
nius's  Manual. 
Calamine. — Prof.  R.  B.  Wild  described  the  production  of  artificial 
calamine  and  its  uses. 
Liquid  Extract  of  Cascara. — Mr.  J.  H.  Franklin  recommends  a 
formula  which  produces  a  bright,  stable  liquid  extract  that  is  freely 
miscible  with  water. 
Preservation  of  Testing  Solutions. — Mr.  F.  H.  Alcock  recommends 
the  addition  of  I  or  2  per  cent,  of  benzene  to  solutions  of  albumen 
and  gelatin. 
Pharmacy  Notes  from  Various  Parts  of  the  World. — Dr.  W.  H. 
Martindale  contributed  a  collection  of  notes  dealing  with  some  of 
the  more  distinguishing  features  of  the  practice  of  pharmacy  in 
many  lands.  , 
False  Calumba. — Mr.  S.  Taylor  called  attention  to  a  new  adul- 
terant of  calumba  much  resembling  inferior  samples  of  the  genuine 
drug,  from  which  it  differs  in  the  presence  of  red  coloring  matter 
and  in  the  form  of  the  crystals  found  in  the  cells. 
Chloroforms  of  Aconite  and  Belladonna. — Mr.  R.  Wright  calls 
attention  to  the  advantages  of  the  Codex  processes  for  making  these 
preparations. 
Infusion  of  Quassia. — Mr.  Ernest  Quant  has  found  that  an  infu- 
sion of  quassia  prepared  with  boiling  water  is  less  satisfactory  than 
one  prepared  with  cold  water  and  subsequently  boiled. 
Iodine  in  Fucus  Vesiculosus. — Mr.  F.  C.  J.  Bird  proposed  to  demon- 
strate the  presence  of  iodine  in  preparations  of  this  drug,  by 
evaporation  to  dryness,  carbonization,  acidifying  with  acetic  acid  and 
treating  with  hydrogen  peroxide.  The  iodine  may  then  be  removed 
by  chloroform  and  identified. 
Examination  of  Chromic  Anhydride  and  its  Solutions. — Mr.  T.  E. 
Wallis  reports  work  done  to  determine  chromic  acid  acidimetrically. 
