162  SELLING  LATIN  AMERICA

roads  form  a  network  in  the  interior,  and  lead
from  both  coasts  and  the  United  States  toward
Mexico  City.
Mexico  has  no  large  rivers  suitable  for  the
navigation  of  ocean-going  vessels  to  any  great
distance.  She  has,  however,  much  available
water  power,  which  is  going  to  waste,  and
possesses  thirty-four  deep  water  ports  on  her
eastern  shore  and  thirty-one  on  the  Pacific.
The  chief  wealth  of  Mexico  is  in  her  mines,
although  agricultural  products  and  the  raising ­
  of  cattle  add  much  to  her  source  of  revenue, ­
  the  annual  value  being  estimated  at  more
than  $200,000,000.
The  soil  is  exceptionally  productive,  yielding ­
  coffee,  henequen,  corn,  cocoa,  tobacco,
fruits,  beans  and  cotton.  At  one  time  much
rubber  was  exported  and  there  are  to-day
many  estates  of  cultivated  rubber  unable  to
ship  their  products.
The  forests  have  valuable  woods  and  have
been  but  little  exploited.  In  the  north  are
excellent  pine  forests,  while  cedar,  mahogany,