NOTE

Currency.—In  the  following  pages  the  value  of  commodities ­
  is  expressed  in  taels  of  silver  as  accepted  at  the
Custom  House.  The  gold  exchange  value  of  these  Haikwan
or  Customs  taels  (symbol  Tls.)  has  been  as  follows  :

In  1864  ..
„  1874  ••
„  1884  ..
„  1894  ..
„  1904

80  pence  English  currency  (6s.  8d.)
76  „  „  „  (6s.  4  d.)
67  „  „  „  (5 s -  7 d -)
38  „  „  „  (3 s -  3d.)
34  „  „  „  (2S-  iod.)

Weight.—Weights  are  expressed  in  piculs,  catties,  and
taels.
One  picul  —  133^  lb.  av.  =  60-453  kilogrammes.
\  cwt.  English.
(i£  cwt.  American.
16-8  piculs  =  i  long  ton.
15-  0  ,,  =  I  short  ton.
16-  54  ,,  =  i  metric  ton.
One  catty  =  lb.  av.  =  604  53  grammes.
One  tael  =  i£  oz.  av.  =  583*3  grains.
„  =  37783  grammes.