where is the 11th character

[capshaw at milano.UUCP]

The manual page for the ls(1) command (from BSD 4.3) contains the
following explanation of the output of the -l option:

     The mode printed under the -l option contains 11 characters
     which are interpreted as follows: the first character is
     ...
     The next 9 characters ...

My question is: Where is the eleventh character ?  And how do I
interpret it ?

Puzzled since v6,

-- 
Dave Capshaw