io  Useful  Plants  of  Algeria.  {Am  jJX'i£iarm' 
table.  The  firm  of  Legout  &  Peyron  export  2,500  to  3,000  pounds 
of  leaves  of  M.  sylvestris,  macrocarpa,  nicceensis,  Lavatera  critica,  etc. 
Geraniace.e. — Many  of  the  Erodiums  have  large  astringent  roots, 
but  the  most  important  product  of  this  family  is  the  geranium  oil, 
obtained  by  distilling  the  leaves  of  various  species  of  Pelargonium, 
as  P.  capitatum  and  P.  roseum,  cape  plants  much  cultivated  in  Algeria. 
There  are  three  cuttings  yearly  of  the  leaves.  In  Algiers  alone 
there  are  48  distillers  who  produce  6,600  pounds  of  essence.  Messrs. 
Chiris  &  Gros  make  about  4,000,  and  many  other  settlers  produce 
large  quantities. 
Rutace.e. — Among  the  species  rich  in  essential  oil  are :  Ruta 
graveolens,  R.  chalepensis  and  montana,  growing  wild  and  cultivated, 
and  Haplophyllum  tuberculatum.  Peganum  Harmala  and  its  seed 
are  much  employed  by  the  Arabs  for  rheumatism,  purulent 
ophthalmia  and  skin  diseases. 
Aurantiace.3£ . — Although  the  orange  tribe  is  largely  cultivated 
in  Algeria,  their  medicinal  products  have  not  been  largely  utilized. 
Several  industries  have  distilled  essences  of  lemon  and  bergamot, 
but  have  not  made  much  headway.  Chiris  &  Gros  alone  make 
essences  of  lemon  and  petit  grain,  but  have  had  to  give  up  their 
Bigarade,  owing  to  the  low  price  at  which  an  essence,  passing  under 
the  name  of  "Paraguay,"  is  sold.  This  firm  make  about  350  to 
420  pounds  of  neroli  oil  yearly.  Orange  flower  water  is  produced 
in  large  quantity,  and  of  excellent  quality,  by  the  Moors.  Orange 
leaves  are  largely  exported.  The  manufacture  of  citric  acid  has 
not  been  attempted,  but  lemon  juice  is  made  for  the  navy  and 
marine. 
TEREBiNTHACEiE.  —  Pistacia  Terebinthus  furnishes  to  Materia 
Medica  its  tanning  galls  and  its  oleoresin  or  Chio  turpentine. 
Both  leaves  and  galls  are  used  for  tanning  and  dyeing  black.  The 
seeds  of  P.  Terebinthus  and  P.  atlantica  are  sometimes  eaten  by  the 
Arabs.  From  the  latter  species  they  collect  turpentine  in  large 
quantity,  and  in  Tunis  a  species  of  mastic,  called  Huclc,  is  obtained. 
From  the  bruised  seeds,  boiled,  of  P.  Lentiscus  the  Arabs  obtain  an 
odoriferous  oil,  used  for  itch  and  rheumatism  and  also  for  food. 
Leguminos.e. — Although  Melilotus  officinalis  is  not  found  in 
Algeria,  it  is  advantageously  replaced  by  numerous  other  species 
