467


produce  of  Pistacia  atlautica  and  Lentiscus  ;  Scio  turpentine,  a  limpid,  fragrant  Ijalsamic
resin,  with  an  odour  between  Lemon  and  Fennel,  is  yielded  by  Pistaeia  Terebinthus  ;  a
substance  like  raastich  is  exuded  by  Schinus  MoUe,  and  the  Peruvians  use  it  also  for
strengthening  theii'  gums. ,  A  full  account  of  the  mode  of  obtaining  mastich  at  Chio,
from  the  Pistaeia  Lentiscus,  is  given  in  the  Annals  of  Chemistry,  vol.  1.  p.  223.  The
juice  cf  many  species  of  Rhus  is  milky,  stams  black,  and  is  sometimes,  as  in  R.  toxico-
dendi'cn  and  radicans,  extremely  venomous  ;  being  volatile  it  is  capable  of  poisoning  per-
sons who  approach  such  plants  in  hot  weather  ;  and  the  same  effects  are  produced  by
R.  venenata.  R.  coriaria,  a  powerful  astringent,  is  used  by  tanners;  its  acid  fruits  are
eaten  by  the  Turks  and  used  to  sharpen  their  vinegar.  The  bark  of  R.  glabrura  is
considered  a  febrifuge,  and  is  also  employed  as  a  mordant  for  red  colours.  R.  Cotinus,
Arbre  a  perruque  of  the  French,  and  Venetian  Sumach  of  the  English,  has  wood  called
Young  Fustick,  which  is  astringent  as  well  as  the  fniit  ;  it  dyes  a  bright  yellow  colom-.
