'^'"AprirlssT""'}  PJ^cwmaceuticaf  Colleges  and  Associations.  197 
^Sulphuric  Acid,  S'oh/tio?}  of  Ammonia.  Place  tlie  solvents  in  the  order  of 
their  power,  the  hest  solvent  first.  Give  the  Phamaeopoeia  test  for  identity 
and  purity  of  Sulphate  of  Quinia. 
7.  Describe,  briefly,  three  methods  for  obtainin<^  Volatile  Oils.  Into  how 
many  classes  are  Volatile  Oils  divided  accordinij,'  to  their  chemical  compo- 
.sition?  Name  one  belongin<»:  to  each  class.  What  are  the  })roximate  con- 
stituents of  Volatile  Oils?  How  may  one  proximate  constituent  be  sepa- 
rated from  the  other?  When  Alcohol  is  used  to  adulterate  Volatile  Oils 
how  may  it  be  detected? 
8.  How  is  Sweet  Sj^irit  of  Nitre  pre])ared  by  the  officinal  process?  What 
improvement  has  been  su<?gested  to  make  the  finished  product  more  defl- 
nlte  and  uniform?  What  chanj^e  takes  place  in  the  preparation  upon 
keeping?  What  is  its  Specific  Gravity?  What  are  the  usual  adultera- 
tions?  How  may  they  be  detected ! 
9.  What  are  the  teruis  used  to  designate  the  parts  of  a  Physician's  Pre- 
scription (containing  more  than  one  ingredient),  which  has  been  correctly 
written  theoretically;  illustrate  by  an  example  containing  any  three 
ingredients  (using  proper  abbreviations  if  you  choose),  and  expressing 
quantities  in  apothecaries  weight  or  measure.  Take  the  same  ingredients 
and  quantities  and  write  out  a  corresponding  metric  prescription. 
10.  AVhat  three  physical  qualities  must  a  good  pill  mass  possess?  Why 
is  each  quality  necessary?  What  is  the  use  of  an  excipient?  Name  four 
diflferent  kinds  of  excipients  used  in  U.  S.  P.  formulas  for  pills — give  an 
officinal  fornmla  with  ingredients  in  which  each  excipient  that  you  have 
named  is  used,  and  state  the  supposed  reasons  for  selecting  the  excipient 
in  each  case. 
QUESTIONS  IN  CHEMISTRY. 
A.  Is  there  any  difference  in  the  officinal  method  for  j>reparing  Potmsii 
lodiclum,  and  that  used  for  Potasfiii  Bromidinn  I  State  what  are  the  ma- 
terials used  in  each  case.  Write  the  chemical  reactions  involved  in  each 
process. 
B,  What  is  the  officinal  process  for  preparing  Fofassii  Bk-arborum  9  Upon 
what  physical  principle  does  the  success  of  this  process  depend?  Is  the 
process  for  preparing  Sodii  Biearbouai^  Venalis  the  same?  If  not,  what 
is  the  difference?    In  what  condition  is  the  resulting  Sodium  Salt  gotten? 
(7.  Write  the  reaction  for  the  Slaking  of  Lime;  also  that  involved  in 
the  use  of  Lime-water  as  a  test  for  Carbonic  Acid  Gas ;  that  required  for 
the  liberation  of  Carbonic  Acid  Gas  from  marble;  that  for  its  preparation 
from.  Sodii  Bicarbonas  ;  that  involved  in  the  preparation  of  Calx  ChJminata. 
D.  Write  the  chemical  formula  of  Alunien  ;  of  Ferri  et  Am7nonii  Sul- 
phas; of  Aluminli  ff  Potamii  Sulphas  ;  of  Alumfn  Fjxslccatiini. 
E.  Write  the  formula,  and  give  the  correct  chemical  name  of  Hydrargijri 
Chloridum  Mite ;  of  Hiidrargyri  Chlortdion  Corrosivian ;  of  Hijdrargyri 
lodidum  Viride  ;  Hijdrargyri  Fjdidum  Fubrvm  ;  of  Hydrargyrum  Ammo- 
niatum. 
F.  Give  the  chemical  formula  of  Flumbi  Aeetas ;  of  the  Salt])resent  in 
Liquor  Flambi  St/b-acrfafis,  and  describe  the  preparation  of  this  latter 
from  the  first  mentioned  compound. 
G.  What  is  an  Ether  ;  What  is  the  distinction  between  a  simple  and  a 
compound  Ether?  Give  the  molecular  fornmla  of  common  ether.  How 
is  it  made — from  what  materials  and  with  what  jirecautions?  Give  the 
chemical  fornuila  of  Nitrous  Ether.  What  is  the  composition  of  the  offi- 
cinal preparation  ? 
H.  Give  the  several  groups  of  mccharinc  compounds.  What  are  the 
differences  in  their  chemical  formulas  ?  Mention  an  officinal  c()m])ound 
containing  Glucose.  What  is  Fermentation?  Illustrate  by  formula  the 
■change  the  sugar  undergoes  in  Fermentation.  What  are  the  distinguish- 
ing characters  and  tests  for  Arnyliim  ? 
I.  Wliat  is  the  composition  of  a  Natural  Fat  9  Illustrate  by  the  chemi- 
<jal  fornmla  of  Olriue,    How  is  this  formula  affected  by  the  treatment  with 
