[fetchmail] fetching mail w/ subject only

Dear fetchmail,
I am running version 5.4.3. I read the man pages, and 
this may be a dumb question.
I would like to get my mail by a particular subject and ignore the rest.
Is this possible?  I can do this w/ webmail.  
I have dialup access, and I plan on sending myself mail which does jobs 
on my pc while I'm away.

TIA
FxM