Am'3iay?i893arm'}  Pharmaceutical  Colleges  and  Associations.  249 
diameter  of  the  circular  piece  of  filtering  paper  on  your  desk  ;  then  fold  a 
plaited  filter  with  it,  and  hand  it  in  with  your  answers  to  the  pharmacy 
questions. 
(4)  Describe  three  methods  of  separating  immiscible  liquids  ;  mention  the 
advantages  of  each  method  ;  illustrate  each  method  with  a  sketch. 
(5)  Describe  the  processes  of  percolation,  repercolation  and  percolation  of 
sugar  in  making  syrup. 
(6)  Name  two  official  liquid  preparations  of  ferric  sulphate ;  state  how 
each  is  prepared,  omitting  quantities,  and  give  the  uses  of  each. 
CHEMISTRY. 
(1)  How  is  the  fact  that  the  atmosphere  has  pressure  established? 
Describe  the  several  forms  of  instruments  for  recording  this  pressure.  Describe 
the  air-pump  and  state  its  uses. 
(2)  Why  does  change  of  condition  sometimes  result  when  bodies  are 
heated  ?  What  is  meant  by  the  latent  heat  of  fusion  and  of  vaporization  ? 
State  practical  applications  of  these  principles. 
(3)  Describe  the  electrolysis  of  water,  stating  the  results  as  fully  as  you  can. 
When  is  an  element  called  electropositive,  and  when  electronegative  ?  Illus- 
trate by  example. 
(4)  Write  the  reactions  for  the  production  of  chlorine.  Mention  experi- 
ments illustrating  the  affinity  of  chlorine  for  other  elements.  Give  the  correct 
chemical  name  for  compounds  of  chlorine  with  the  metals.  Give  three 
examples. 
(5)  Describe  the  several  phj^sical  modifications  of  the  element  stdphur. 
Under  what  names  is  sulphur  described  in  the  U.  S.  Pharmacopoeia  ?  What 
name  do  we  give  to  compounds  of  sulphur  with  the  metals  ?    Give  examples. 
(6)  Give  the  chemical  formula  of  Acidum  Boricum  and  Sodii  Boras. 
Describe  the  occurrence  of  these  compounds  in  nature.  How  would  you  pro- 
ceed to  prepare  one  of  these  preparations  from  the  other  ? 
EXAMINING  COMMITTEE. 
(1)  State  the  official  names  of  the  two  varieties  of  rose  petals.  Name  two 
or  more  constituents  contained  therein.  Mention  the  habitat  of  each  variety. 
Name  an  official  preparation  of  each  variety. 
(2)  What  is  the  formula  for  sulphur  dioxide?  How  is  it  prepared  ?  Give 
the  physical  and  chemical  properties  of  sulphur  dioxide.  What  official  acid  is 
prepared  from  this  oxide  ?    What  impurities  does  this  acid  frequently  contain  ? 
(3)  The  following  ingredients  are  used  in  proportions  given,  in  the  prepara- 
tion of  official  camphorated  tincture  of  opium  :  Powdered  opium,  benzoic  acid, 
camphor,  oil  of  anise,  of  each  "4  of  one  per  cent.;  glycerin,  four  per  cent.; 
diluted  alcohol,  sufficient  to  make  one  hundred  per  cent.  Write  a  formula, 
using  metric  weights,  for  fifteen  kilograms  of  the  tincture. 
(4)  Give  a  brief  description  of  the  processes  of  (1)  filtration,  (2)  precipita- 
tion, (3)  lotion,  (4)  expression  and  (5)  percolation.  Give  the  names  of  five 
official  substances  to  obtain  which  the  respective  operations  are  employed. 
OPERATIVE  PHARMACY. 
The  purification  and  granulation  of  ammonium  chloride,  and  the  prepara- 
tion of  ointment  of  nitrate  of  mercury,  and  of  suppositories  of  tannin  with 
