368  Pharmaceutical  Colleges  and  Associations.  {AmjKy^f9Lam3 
forming  crystalline  needles  on  cooling ;  it  is  very  soluble  in  alcohol, 
but  only  slightly  in  ether  and  in  chloroform  ;  it  melts  at  62 — 63 °.. 
Potassium  phloionate  is  very  soluble  in  ether,  less  so  in  alcohol. 
Silver  phloionate  is  rapidly  decomposed  in  the  light,  whilst  the  cor- 
responding phellonate  is  only  slowly  colored.  Magnesium  phloi- 
onate forms  a  crystalline  precipitate  when  an  alcoholic  solution  of 
a  magnesium  salt  is  added  to  a  solution  of  phloionic  acid.,  Suberinic 
acid,  C17H30O3,  when  gently  warmed,  forms  a  liquid  miscible  with 
alcohol,  ether  and  chloroform,  but  not  with  light  petroleum.  Its 
alkaline  salts  are  soluble  in  water,  and  alcohol ;  in  the  alcoholic 
solution  no  precipitate  is  produced  either  by  magnesium  or  barium 
acetate.  When  heated  without  access  of  air,  suberinic  acid  gradu- 
ally forms  a  transparent,  elastic  mass,  for  which  no  solvent  has  yet 
been  found.  No  water  appears  to  be  separated ;  the  change 
appears  rather  to  be  due  to  polymerization.  Potassium  suberinate  is 
soluble  in  water  and  alcohol,  but  not  in  ether.  The  silver  salt  is 
rapidly  decomposed.  Gilson  has  observed  a  characteristic  test  for 
phellonic  acid,  which  consists  in  the  beautiful  reddish-violet  color 
produced  on  moistening  the  acid  with  a  very  dilute  alcoholic  iodine 
solution,  and  adding  sulphuric  acid  (sp.  gr.  1-8);  the  reaction 
succeeds  best  with  potassium  phellonate,  and  may  be  obtained  with 
iodine  in  aqueous  solution  of  potassium  iodide,  or  with  iodine  in 
zinc  iodide.  The  foregoing  relates  entirely  to  cork  from  Quercus 
suber.  Gilson  has,  however,  glanced  at  that  from  Ulmus  campestrts 
var.  suberosa,  and  finds  that  this  is  much  poorer  in  suberin.  It 
yielded  phellonic  and  suberinic  acids,  but  neither  phloionic  acid  nor 
glycerol. 
PHARMACEUTICAL  COLLEGES  and  ASSOCIATIONS.. 
The  Pharmaceutical  Examining  Board  of  Pennsylvania  held  an  examination 
in  the  Central  High  School  of  Philadelphia,  January  19,  when  109  candidates 
applied  for  registration  as  Pharmacists,  of  which  number  30  passed  the  exami- 
nation ;  and  51  out  of  the  89  applicants  for  Qualified  Assistants'  certificates.. 
At  the  examination  held  at  the  Girls'  High  School,  at  Harrisburg,  April  25, 
there  were  107  applicants  for  Registered  Pharmacists'  certificates,  and  49  for 
Qualified  Assistants  ;  of  these  numbers  71  and  38,  respectively,  were  successful. 
The  Massachusetts  College  of  Pharmacy  held  its  twenty-third  annual  com- 
mencement, May  27,  when  President  Sheppard  conferred  the  degree  of  Ph.G- 
upon  27  candidates.  Addresses  were  delivered  by  Professor  G.  R.  Tucker 
and  F.  W.  Day,  Ph.G. 
The  New  York  College  of  Pharmacy  held  its  sixty-first  commencement 
