2 1  2  Pharmaceutical  Colleges  and  Associations.  { AmAp?n,%£7h9arm* 
liquids.  How  many  degrees  of  fineness  of  powders  are  recognized  by  the  United- 
States  Pharmacopoeia?  Give  the  Pharmacopoeia  name  of  each  degree  of  fineness,,, 
with  the  number  attached  to  it,  and  explain  what  the  number  refers  to.  How  are 
powders  usually  prepared  and  dispensed  upon  Physicians'  prescriptions? 
About  two-thirds  of  the  candidates  .passed  the  examination  in  all  the  branches 
successfully  5  the  remainder  will  come  up  for  a  supplementary  examination  in  one 
or  more  branches  near  the  close  of  September  next,  at  which  time  also  students, 
from  other  Colleges,  who  have  not  passed  the  junior  examination,  will  be  examined. 
The  precise  time  will  be  announced  hereafter.  Students  intending  to  be  present- 
should  report  by  letter  to  the  actuary  of  the  College,  Mr.  Thos.  S.  Wiegand,  on  or 
before  September  ist. 
The  examinations  of  tint  senior  students  commenced  February  27th  and  closed 
March  4th  with  the  examination  in  practical  manipulations.  The  written  examina- 
tions were  conducted  on  four  consecutive  days  on  the  following  subjects  : 
QUESTIONS    IN  CHEMISTRY. 
A.  What  is  "Sal  Soda?  "  of  the  shops,  and  from  what  natural  source  was  it  for- 
merly obtained  ?  From  what  salts  is  it  prepared  on  a  large  scale  ?  Give  the  process 
for  its  manufacture  and  explain  the  chemical  changes  in  each  stage  of  the  operation. 
Give  the  composition  of  the  crystallized  salt,  and  describe  its  general  physical  pro- 
perties What  changes  are  produced  in  it  by  exposure  to  air  and  to  heat?  State  the 
forms  in  which  it  is  officinal  and  the  names  they  bear  in  the  U.  S.  Pharmacopoeia. 
What  salt  is  formed  by  saturating  it  with  carbon  dioxide  ?  Describe  the  process 
used  and  state  the  changes  which  take  place.  By  what  tests  may  its  full  saturation 
be  ascertained  ?    What  are  the  effects  of  heat  upon  it,  both  when  dry  or  dissolved  > 
B.  State  the  chemical  nomenclature  of  the  two  principal  classes  of  iron  salts,  and 
give  an  example  of  each.  State  the  quantivalence  of  the  iron  in  each  class,  and  give 
the  symbol  for  iron  with  notation  denoting  the  quantivalence.  Give  the  general 
distinctive  properties  of  the  soluble  salts  of  the  two  classes.  State  the  officinal 
method  of  obtaining  "Liquor  Ferri  Chloridi,"  U.  S.  P.,  and  explain  the  chemical 
changes  which  take  place  in  each  stage,  both  by  words  and  by  formulas.  What 
officinal  preparation  contains  this  solution  ?  In  what  respect  does  this  differ  chemi- 
cally from  the  "Liquor?  " 
C.  Give  the  chemical  name  for  "  Lunar  Caustic,"  and  state  its  mode  of  prepara- 
tion, with  formula  of  the  reaction.  Give  the  names  under  which  it  is  officinal,  and 
state  what  difference  exists  either  in  appearance  or  composition  of  its  different  forms. 
Which  of  these  is  intended  for  internal  use,  and  whv  ?  Is  either  form  subject  to 
adulteration  5  if  so,  which,  and  what  is  generally  used  for  this  purpose?  How  can 
this  adulteration  be  detected  ? 
D.  State  the  composition  and  mode  of  preparing  Ammonium  Nitrate.  What  are 
the  effects  of  heat  upon  it,  both  at  moderate  and  high  temperatures?  Name  any  new 
compounds  resulting  from  its  decomposition,  and  give  a  formula  of  the  reaction. 
State  any  precautions  necessary  to  be  taken  in  effecting  its  decomposition. 
E.  What  is- the  probable  composition  of  "  Calx  Chlorinata  ?"  Give  the  mode  by 
which  it  is  made,  and  any  precautions  necessary  to  be  taken.  Give  the  formula  for 
the  reaction  that  takes  place.  What  are  the  properties  which  render  it  useful  in 
medicine  and  the  arts?    What  are  the  effects  of  the  action  of  acids  upon  it? 
F.  What  is  the  difference  in  the  action  of  pure  and  of  ordinary  water  on  lead,  and 
to  what  is  the  difference  due?  Which  acid  is  the  best  solvent  for  lead,  and  what  are 
the  products  formed  ?  Is  the  salt  thus  formed  used  pharmaceutically,  and  for  what 
purpose?    Why  is  it  preferred  to  the  more  common  lead  salt? 
G.  What  metal  exists  in  lime,  and  with  what  element  is  it  combined?  From 
which  of  its  compounds  is  lime  usually  obtained,  and  in  these  with  what  other 
metallic  compound  is  it  associated?    Give  its  general  properties,  and  the  physical 
