THE  ESSENTIAL  OIL  OF  CITRUS  LUMIA. 
548 
years  ago,  was  worked  for  cobalt  and  copper,  and  is  now  again 
being  searched.  Here  I  obtained  very  rich  and  massive  silver- 
wThite  arsenical  cobalt  ore,  and  also  copper  pyrites.  The  neigh- 
borhood for  some  miles  is  in  fact  rich  in  minerals.  Dr.  Fidler 
writes  :  "  Almost  immediately  behind  Whitehaven  Parsonage 
a  sulphur  vein  crops  out,  a  continuation  of  the  same  vein  that 
is  being  worked  at  Under  Hill,  but  whether  it  exists  in  any 
quantity  I  do  not  know.  There  are  three  or  four  copper  veins 
in  a  ravine  behind  Whitehaven  Mill,  one  of  which  has  been  tried 
some  twelve  or  fifteen  fathoms  below  the  surface."  Baryta, 
also,  has  been  found  I  am  told,  above  the  source  of  Whitbeck 
in  the  mine  above-mentione  \ 
It  will  be  seen  that  the  arsenic  in  the  water  of  Whitbeck  is 
thus  most  probably  derived  from  the  veins  of  arsenical  cobalt 
ore  through  which  it  percolates. 
The  arsenical  water  is  habitually  used  for  every  purpose  by 
the  inhabitants  of  the  little  village  of  Whitbeck,  and,  as  far 
as  I  can  learn,  with  beneficial  rather  than  injurious  results. — 
But  it  is  remarkable  that  Whitbeck,  though  in  every  respect 
suitable  for  trout,  is  the  only  stream  in  the  neighborhood  from 
which  that  fish  is  absent ;  eels,  however,  have  been  found  in  it. 
Ducks  will  not  live  if  confined  to  this  arsenical  water.  When 
the  railway  was  being  carried  past  Whitbeck,  the  first  use  of 
water  quickly  produced  the  usual  marked  effect  on  the  throats 
both  of  the  men  and  the  horses  employed  on  the  works.  The 
soreness  of  mouth  from  which  they  at  first  suffered  soon,  however, 
disappeared,  and  in  the  horses  gave  place  to  that  sleekness  of 
coat  assigned  as  one  of  the  effects  produced  by  the  administra- 
tion of  arsenic.  It  is  a  question  how  far  the  rosy  looks  of  the 
Whitbeck  children,  and  the  old  age  which  a  large  proportion  of 
the  inhabitants  of  the  village  attains,  are  to  be  attributed  to  the 
arsenic  present  in  the  water  they  drink. —  Ckem.  News,  London, 
Aug.  25,  1860. 
THE  ESSENTIAL  OIL  OF  CITRUS  LUMIA. 
The  Citrus  Lumia,  or  sweet  lemon,  is  common  in  Sicily  and 
Calabria.  In  external  appearance  very  like  the  common  lemon, 
the  fruit  differs  by  containing  a  sweet  instead  of  an  acid  juice. 
