AmAJu0gU!:'i876a.rm'}  Gleanings  from  the  Foreign  Journals,  351 
tracted  by  ether  ;  if  obtained  by  pressure,  of  course  considerably  less 
would  be  obtained. 
From  the  results  obtained,  as  above,  the  author  concludes  that  the 
cultivation  of  the  sunflower  would  be  profitable,  inasmuch  as  a  Bava- 
rian acre  would  yield  from  the  plants  (deprived  of  the  fruit)  1,525  kilos 
ashes,  yielding  1,250  kilos  of  potash,  and  from  the  fruit,  by  extraction, 
870  kilos  of  oil  with  3,120  kilos  of  residue,  or  by  pressure,  720  kilos  of 
oil  and  3,280  kilos  of  presscakes. 
The  air-dry  fruit  lost  at  no°C.  6  per  cent,  of  water  and  yielded 
4*173  per  cent,  of  ashes,  20*273  per  cent,  of  which  was  soluble  in 
water.  It  consisted  of  i4*475K2O,4*7i4Na2O,i*405Na,6*8i iCaO,. 
io*Q6oMgO,*227Al203,  i.427Fe2Os,  2*i62Cl,  2*o86S03,3i.848P205, 
io*8nSi03  and  i3*074CO2. 
GLEANINGS  FROM  THE  FOREIGN  JOURNALS. 
BY    THE  EDITOR. 
Princewood  bark,  a  febrifuge  of  the  Bahamas. — The  name  of  prince- 
wood  is  given  to  two  small  West  Indian  trees,  Cordia  gerascanthoides 
Kth.,  nat.  ord.  Boraginaceae,  and  Hamelia  ventricosa,  Sw.  nat.  ord. 
Rubiaceae.  Both  are  noted  for  their  timber,  which  is  lightish  brown 
with  dark  brown  marking,  and  used  for  table  and  cabinet  work.  Sam- 
ples of  princewood  bark,  recently  received  at  the  Kew  Museum,  were 
ascertained,  by  Mr.  John  R.  Jackson,  to  be  derived  from  Exostemma 
caribceum,  R.  S.,  nat.  ord.  Rubiaceae,  which,  according  to  Grisebach, 
is  a  fragrant  shrub  widely  distributed  in  Jamaica,  Antigua,  Dominica, 
Trinidad,  Cuba,  Mexico  and  Guiana.  The  bark  is  smooth,  of  a  deep 
reddish-brown,  but  somewhat  greyish  on  the  outside  ;  under  an  ordi- 
nary lens,  numerous  small  crystals  are  seen  distributed  over  its  surface. 
It  breaks  with  a  short,  woody  fracture  ;  in  flavor  it  is  at  first  sweet, 
changing  to  an  astringent  bitterness  ;  it  readily  tinges  cold  water  to  the 
color  of  dark  brandy,  and  imparts  to  it,  in  a  few  hours,  opaqueness,  a 
strong,  earthy  smell  and  bitter  taste.  It  has  been  known  as  the  Jesuits' 
bark  of  Jamaica,  and  is  sometimes  called  the  seaside  beach. 
Exostemma  floribundum  and  brachycarpum,  likewise  occurring  in  the 
West  Indies,  are  called  "  quinquina  piton,"  or  "  China  caribaea " 
(Grisebach).  E.  cuspidatum,  a  small  tree,  native  of  Brazil,  is  there 
called  lt  quino  do  mato  j"  E.  corymbiferum  is  a  native  of  the  islands  of 
