•} Pharmaceutical  Colleges  and  Associations. 
253 
CHEMISTRY. 
(1)  Upon  what  principle  do  we  base  trie  composition  of  "  freezing  mixtures  ?" 
Give  the  composition  of  one  or  more  such  mixtures,  showing  how  they  illustrate 
the  principle  before  stated. 
(2)  State  the  distinction  between  a  native  magnet,  an  artificial  maguet,  and 
an  electro-magnet.  Which  of  these  classes  is  the  most  powerful  in  its  action  ? 
Mention  any  useful  application  any  of  these  classes  have  in  practice. 
(3)  What  is  Aqua  Chlori?  How  is  it  made — from  what  materials  and  with 
what  form  of  apparatus  ?    What  are  the  uses  of  Aqua  Chlori  ? 
(4)  Describe  the  element  Iodine  and  state  whence  it  is  obtained.  Give 
the  formulas  of  three  compounds  of  iodine  and  metals.  State  some  of  the 
pharmaceutical  preparations  in  which  iodine  is  the  essential  constituent. 
(5)  Give  the  chemical  formulas  of  the  several  phosphoric  acids  and  state  their 
basicity.  Write  the  formulas  of  the  sodium  salts  of  these  several  acids.  Give 
the  chemical  formula  of  an.  officinal  hypophosphite. 
(6)  Complete  the  following  reactions,  and  name  the  several  substances  used 
in  the  reaction  and  the  products  obtained. 
(1)  Name  ten  of  the  classes  into  which  the  preparations  of  the  United  States 
Pharmacopoeia  are  divided.  Write  the  correct  Uatin  officinal  name  of  one  pre- 
paration from  each,  immediately  after  the  title  of  the  class  to  which  it  belongs. 
(2)  How  does  the  venation  of  monocotyledonous  and  dicotyledonous  plants 
differ?  How  do  pinnate  and  palmate  leaves  differ?  Illustrate  by  diagram, 
the  following  forms  of  leaves:  Ovate,  Lanceolate,  Sagittate,  Peltate. 
(3)  State  the  weight  in  grammes  of  the  quinine  contained  in  one  litre  of  fluid 
extract  of  cinchona,  U.  S.  P.,  if  the  bark  from  which  it  was  made  yielded  275 
per  cent,  of  the  alkaloid  and  was  thoroughly  exhausted. 
(4)  Name  the  ingredients  and  proportions  of  each,  which  enter  into  the  com- 
position of  Seidlitz  Powder.  What  is  its  officinal  name  ?  What  reaction 
takes  place  when  they  are  mixed  ?  How  should  it  be  kept  in  stock  ?  What  is 
the  result  of  improper  keeping? 
(5)  How  is  nitro -hydro chloric  acid  made  by  the  officinal  process?  What 
should  be  produced  by  the  reaction  ?  What  is  the  synonym  of  this  acid  ?  How 
is  diluted  nitro-hydrochloric  acid  made  ?  State  its  medicinal  properties  and 
dose. 
In  Operative  Pharmacy  each  student  was  required  : 
(1)  To  prepare  two  fluid  ounces  of  syrup  of  iodide  of  iron. 
(2)  To  dispense  twelve  powders,  each  containing  Cinchoninae  sulph.,  gr.  v, 
and  Glycyrrhizae  pulv.  gr.  iij. 
CaOCl2+2HCl= 
Na2S20,+H2S04= 
2NaHCQ3+heat= 
QUESTIONS  BY  EXAMINING  COMMITTEE. 
SPECIMENS. 
Chelidonium. 
Aurantii  flores. 
Chondrus. 
Aqua  Amygdalae  amarae.  Acidum  sulphurosum. 
Mistura  Ferri  et  Ammo-    Potassii  nitras. 
nii  acet.  Sodii  boras. 
Syrupus  Tolutanus. 
Ferri  sulphas  praecipitatus. 
