536 
PURITY  OP  YELLOW  BEESWAX. 
2J  fluid  ounces  of  infusion.  It  is  given  as  an  antiperiodic  in 
doses  of  10  to  15  grains,  three  times  daily,  and  here,  in  Bombay, 
considered  equal  to  8  to  5  grains  of  quinine. 
A  decided  advantage  that  can  be  given  it  over  chiretta  is  that 
some  uniformity  of  strength  can  be  guaranteed  by  regulating  the 
quantity  of  sugar  used  according  to  the  proportion  of  ammonio- 
acetate  of  lead  required  to  precipitate  the  chirettine. 
That  chiretta  varies  considerably  in  strength  I  have  found  by 
experience. 
The  Chairman  stated  that  he  had  not  found  the  tincture  of 
chiretta  give  any  deposit  on  keeping  in  this  country.  Probably 
the  difference  in  this  respect  might  be  due  to  climate. 
Professor  Attfield  remarked  on  the  peculiarity  of  the  active 
principle  of  chiretta  in  undergoing  decomposition  when  its  solu- 
tion was  evaporated,  as  being  a  character  worth  examination 
from  a  chemical  point  of  view,  as  well  as  in  its  bearings  on  the 
making  of  pharmaceutical  preparations  of  chiretta. 
Mr.  Groves  approved  highly  of  the  principle  on  which  the 
manufacture  of  saccharo-chirettine  was  based.  He  also  thought 
that  the  satisfactory  results  obtained  by  the  author  in  this  in- 
stance seemed  to  show  the  wisdom  of  using  sugar  in  certain  phar- 
maceutical preparations  as  a  preservative,  and  he  referred  to  the 
old  practice  of  preparing  medicines  in  the  form  of  troches,  etc., 
as  one  probably  useful  on  that  account,  which  might  with  benefit 
be  reverted  to  in  our  day,  especially  in  the  case  of  medicines 
destined  for  export  to  foreign  countries. — Proc.  Brit.  Pharm. 
Conf,^  in  Lond.  Pharm.  Journ.^  Sept.  24,  1870. 
THE  PURITY  OF  THE  YELLOW  BEESWAX  OF  PHARMACY. 
By  Edward  Davies,  F.C.S. 
In  this  paper  I  am  only  able  to  give  the  result  of  the  exam- 
ination of  some  samples  of  wax  purchased  in  Liverpool,  five 
samples  of  crude  wax  obtained  from  a  wholesale  house,  and  four 
samples  sent  to  me  for  analyses  from  a  Liverpool  firm,  of  the 
history  of  which  I  am  ignorant. 
I  shall  first  give  the  methods  employed,  then  a  table  of  the  re 
