270 
London  Botanic  Gardens. 
A.m.  Jour.  Pharm. 
June,  1906. 
Glycerin,  4  fl.  oz.  (125  c.c.) 
Water,  a  sufficient  quantity  to  make  2  pints  (icoo  c.c). 
Mix  the  glycerin  with  10  fluidounces  of  water  (300  c.c).  Moisten 
the  wild  cherry  with  a  sufficient  quantity  of  the  liquid,  and  macerate 
for  twenty-four  hours  in  a  covered  vessel ;  then  pack  it  firmly  in  a 
cylindrical  percolator,  and  pour  on  the  remainder  of  the  menstruum. 
When  the  liquid  has  disappeared  from  the  surface,  follow  it  by 
water  until  the  percolate  measures  1 5  fluidounces  (450  c.c).  Dissolve 
the  sugar  in  the  percolate  by  agitation,  without  heat,  strain,  and 
pour  enough  water  through  the  strainer  to  make  the  product  meas- 
ure 2  pints  (1000  c.c).    Mix  thoroughly. 
LONDON  BOTANIC  GARDENS. 
By  Pierre;  Eue  Feeix  Perredes,  B.Sc,  F.L.S., 
Pharmaceutical  Chemist. 
A  Contribution  from  the  Wellcome  Research  laboratories,  London. 
{Continued from  p.  2j6.) 
THE    WORK    ACCOMPLISHED    IN    THE    GARDEN,  DURING    THE  ADMINIS- 
TRATION OF  THE  SOCIETY  OF  APOTHECARIES. 
In  the  introductory  chapter  a  summary  was  given  of  the  botanical 
work  accomplished  by  the  Apothecaries  in  their  garden  at  Chelsea, 
and  from  this  we  have  seen  that  it  was  mainly  of  an  educational 
character.  The  various  systems  of  classification,  for  example,  from 
that  of  Ray  downwards,  were  reflected  in  the  arrangement  of  the 
plants  in  the  garden,  and  this  practical  application  of  one  system 
or  the  other  was  preceded,  as  a  rule,  by  its  adoption  in  the  lectures 
and  demonstrations,  and  foreshadowed  in  many  notable  contribu- 
tions to  scientific  literature  by  prominent  apothecaries  or  by 
members  of  the  garden  staff.  These  important  matters  will  be 
considered  in  greater  detail  presently,  but  it  will  be  expedient,  in 
the  first  place,  to  trace  the  steps  by  which  the  collections  of  plants 
were  developed. 
One  of  the  earliest  references  to  the  contents  of  the  Garden  is 
to  the  effect  that  in  1678  a  good  crop  of  herbs  for  the  use  of  the 
Laboratory  was  furnished  from  the  garden,  and  it  is  also  on  record 
that  directions  were  given,  in  the  same  year,  to  have  the  garden 
planted  with  the  best  varieties  of  fruit  trees.    In  the  autumn  of 
