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Modem  Paint  Vehicles. 
Am.  Jour.  Pharm. 
May,  1919. 
The  other  variety  of  the  lumbang  comes  only  from  the  Philippine 
Islands. 
Aguilar,  after  a  long  series  of  tests,  comes  to  the  conclusion  that 
the  drying  properties  of  both  the  lumbang  oils  are  comparable  to 
those  of  linseed;  that  the  bato  oil,  in  particular,  is  very  similar  in 
paint-making  properties  to  linseed,  but  like  linseed  has  certain  dis- 
advantages for  use  with  red  lead. 
He  finds  that  the  banucalag  variety  cannot  be  used  as  a  paint 
vehicle  and  dries  into  a  paste  with  red  lead.  (The  explanation  may 
be  partly  in  its  high  acid  value  of  8.70,  while  the*  bato  variety  showed 
an  acid  value  of  only  1.05.) 
A  very  interesting  oil  for  red  lead  was  found  in  a  mixture  of 
banucalag  containing  between  50  and  75  per  cent,  bato  oil.  This 
gives  a  paint  which  does  not  harden,  like  paint  made  from  linseed 
or  either  of  the  lumbang  oils  alone.  It  is  also  claimed  that  the 
various  "painting  out"  properties  of  the  resulting  paint,  are  better 
than  that  of  one  made  from  linseed  oil  alone ! 
Sunflower  seed  oil  did  not  turn  out  as  promising  for  paint  use  as 
was  first  expected. 
Properly  refined  fish  or  menhaden  oil  (the  "  odorless  "  variety!) 
appears  to  have  met  all  physical  requirements  except  that  it  has  a 
tendency  to  darken — in  other  words,  it  is  not  apparently  satis- 
factory for  use  with  whites  and  tints,  but  it  has  been  used  largely  in 
outside  green  cantonment  paint  for  the  U.  S.  Army,  and  on  rigid 
specifications  as  to  purity. 
Many  other  oils,  such  as  llalemantia  and  chia,  are  under  investiga- 
tion, both  from  an  agricultural  and  technical  point  of  view,  but  noth- 
ing very  definite  can  be  said  of  them  as  yet. 
With  respect  to  chia  oil,  a  gentleman  who  had  been  in  Mexico 
before  conditions  became  so  satisfying  to  lovers  of  Bolsheviki  condi- 
tions of  living,  exported  chia  nuts  to  this  country  for  over  two  years. 
The  oil  from  these  was  used  by  someone  who  may  have  been  a 
little  more  progressive  or  better  equipped  than  the  rest  of  us,  who  it 
was  I  do  not  know. 
The  discussion  would  not  be  complete  without  some  mention  of 
the  various  "dope  "  oils,  near  linseed  oils  and  other  patent  remedies 
for  the  ailments  of  the  trade  which  are  so  widely  advertised. 
Some  of  these  are  most  excellent  for  the  purposes  intended,  and 
are  sold  absolutely  on  their  own  merits  as  substitute  oils,  not  "  equal 
