Am.  Jour.  Pharm.  \ 
"February,  1902.  j 
PJiarmaceutical  Meeting, 
103 
American  Journal  of  Pharmacy  on  the  preparation  of  pepsin 
(1872,  p.  49).    The  motion  was  unanimously  adopted. 
The  next  paper  was  on  "  The  Filtration  of  Drinking  Water,"  by 
William  G.  Toplis  (see  p.  67).  The  author,  in  connection  with  the 
paper,  demonstrated  the  construction  of  a  sand-filter,  and  said  that  in 
the  purification  of  water  no  less  than  three  separate  and  distinct 
classes  of  organisms  are  concerned  :  the  first  changing  the  organic 
matter  into  ammonia ;  a  second  group  changing  the  ammonia  into 
nitrous  acid ;  and  finally,  a  third  forming  from  the  latter  nitric  acid. 
He  also  alluded  to  the  different  methods  for  the  biological  and 
chemical  examination  of  water. 
A  paper  on  the  "Solubility  of  Compressed  Tablets"  (see  p.  80), 
by  A.  M.  Hance,  was  read  on  behalf  of  the  author  by  W.  C.  White. 
The  author  said  that  the  term  solubility,  as  applied  to  tablets,  indi- 
cates the  power  to  disintegrate  rather  than  power  to  form  solutions. 
Rolland  H.  French  presented  a  paper  on  "  Seidlitz  Powders  "  (see 
p.  74).  The  author  said  that  for  all  commercial  purposes  the 
analysis  of  Seidlitz  mixture  might  be  reduced  to  simply  a  C02 
determination,  from  which  the  sodium  bicarbonate  was  calculated 
and  the  Rochelle  salt  found  by  difference. 
"  Progress  in  Pharmacy  "  was  the  title  of  an  excellent  paper  (see 
p.  82)  by  M.  I.  Wilbert,  Apothecary  to  the  German  Hospital.  The 
author  briefly  reviewed  some  of  the  advances  made  during  the  past 
year,  and  among  other  things  called  attention  to  the  fact  that  the 
requirements  of  the  German  Pharmacopoeia  are  of  such  a  nature 
that  many  German  apothecaries  have  found  it  advisable  to  attend 
short  post-graduate  courses,  embracing  work  with  the  compound 
microscope  and  volumetric  analysis. 
Owing  to  lack  of  time  the  "  Discussion  on  Modern  Drug  Store 
Methods  "  was  postponed  until  the  next  meeting. 
Among  the  exhibits  was  that  of  Merck  &  Co.,  who  exhibited  a 
specimen  of  gaduol  (the  alcoholic  extract  of  cod-liver  oil)  and  the 
various  preparations  which  can  be  made  from  it,  as  with  hypophos- 
phites,  peptonized  iron,  dionin  and  thiocol.  The  exhibit  also- 
included  thiocol  (guaiacol-sulphonate  of  potassium)  and  dionin 
(ethyl-morphine  hydrochlorate). 
Gilpin,  Langdon  &  Co.  exhibited  a  line  of  spices ;  they  also  had  & 
number  of  samples  for  distribution.  An  exhibition  of  metal  goods,, 
including  pill  machines,  bottle  stoppers  and  collapsible  tubes,  was 
made  by  A.  H.  Wirz. 
