AGRICULTURAL  BULLETIN 
OF  THK 
STRAITS 
AND 
FEDERATED  MALAY  STATES. 
No.  6.] 
JUNE,  1903. 
[VoL.  IE 
JELUTONG. 
' Mr.  R.  Shelforu  sends  from  Borneo  samples  of  leaves  and 
pods  of  the  Dytra  from  which  the  Jelutong  of  Borneo  referred  to  in 
the  Bulletin  for  March  (II.  3)  is  obtained,  together  with  a sample 
of  the  product  and  the  stone  from  which  the  white  powder 
referred  to  (p.  g6)  is  made.  The  leaves  do  not  at  all  resemble 
those  of  Dr.  Haviland’s  Jelutong  tree,  but  look  like  the  young 
leaves  off  a shoot  of  D.  costulata  and  the  pod  is  quite  indistinguish- 
able from  that  of  our  species.  The  leaves  are  lanceolate  and  blunt,, 
narrowed  into  the  petiole,  12  inches  long  and  over  3 inches  wide, 
with  about  27  pairs  of  nerves,  glaucous  beneath,  dull  green  above, 
petiole  2 inches  long,  rather  slender.  The  bark  is  J inch  thick, 
dark  brown  and  warty.  The  branches  are  5-angled  and  brown.  I 
have  little  doubt  that  this  is  the  Dyera  Loivii  Hook  fil  but  am  rather 
doubtful  as  to  whether  there  is  really  more  than  one  variable  species 
of  the  genus. 
Mr.  Shelford  gives  the  following  recipe  for  the  making  of  the 
gutta : — 
I kerosine  tin  of  water; 
I ,,  ,,  [elutong  latex ; 
I pint  (approximately)  of  kerosine  oil ; 
I spoonful  of  the  powdered  stone. 
The  mixture  does  not  set  till  the  powder  is  added.  The  stone 
and  gutta  were  sent  by  Mr.  Ong  Tiang  Ywee. 
The  stone  in  question  is  gypsum,  sulphate  of  lime,  apparently 
derived  from  a vein  passing  through  slate. 
It  is  derived  from  China. 
RUBBER  TAPPING  IN  MALACCA. 
In  a minute  by  Mr.  Gagliardi,  forwarded  by  the  Hon.  Resident 
Councillor  concerning  rubber  tapping  in  the  Bukit  Sebukor  Forest 
reserve  he  reports  that  he  tapped  four  Para  rubber  trees  with  one 
