3  6  Minutes  of  the  Pharmaceutical  Meeting.  { '^"'•jln'^;8^5.^'"" 
to  be  never  less  than  6  per  cent,  in  black  and  white  peppers.  The 
small  extract  yielded  by  long  pepper  is  noteworthy. 
Aqueous  Extract. 
The  Dry  Substance 
yields  to  Water. 
Penang,      ........  18-335 
Tellicherry,     .......  i6'5oo 
Sumatra,     ........  17*500 
Malabar,  .......  20*375 
Trang,       .  .  .  .  .  .  .  .  18-175 
Long  pepper,    .......  16-825 
The  total  ammonia  yielded,  in  the  manner  before  mentioned,  ex- 
pressed in  percentage  : 
jEoo  grms.  of — 
NH3.  Nitrogen. 
Penang  pepper  yield  to  water,     ....    0-450  =  0-370 
Tellicherry 
Sumatra 
Malabar 
Trang 
Long 
0-450  =  0-370 
0-375  =  o"3io 
0-295  =  0-243 
0-325  =  0-300 
0-I75  =  o"i44 
As  100  parts  of  piperin  contain  4*9  of  nitrogen,  if  the  nitrogen  be 
considered  as  dissolved  piperin,  the  mean  of  the  piperin  boiling  water 
takes  up,  and  when  cold  retains,  of  the  first  five  peppers  =  O'Oiy. 
The  small  yield  from  long  pepper  is  a  great  distinguishing  mark, — 
Chem.  News  \Lond^^  Oct.  9,  1874. 
Barnstaple,  Sept.  23,  1874. 
MINUTES  OF  THE  PHARMACEUTICAL  MEETING. 
The  third  meeting  of  the  session  was  held  December  15th,  1874.  A.  P.  Brown 
in  the  chair.  Number  in  attendance,  thirty-three.  The  minutes  of  the  previous 
meeting  were  read  and  approved.  The  following  presentations  were  made  to  the 
cabinet :  Prof  Maisch,  on  behalf  of  Messrs.  Kurlbaum  &  Co.,  of  this  city,  two 
samples  of  crude  material  from  which  borax  is  prepared  5  Tincal,  from  the  East 
Indies,  which  is  no  longer  used  for  refination  in  this  country,  and  Hayesine,  called 
after  the  mineralogist,  a  native  borate  of  calcium  from  Peru,  which  has  been  used 
by  Messrs.  Wood,  of  Glasgow,  for  this  purpose.  Whether  the  advent  of  the 
cheaper  California  product  has  not  so  lessened  the  price  of  refined  borax  as  to  render 
