On Jun 5, 10:47  쮮
> [Note:         
>
> before one can include a module into a program, one must first have said
> module available... 
WOW! It makes perfect sense!  Now that you've enlightened me (and I've
applied your advice to confirm its wisdom),  I'm amazed that I didn't
see that simple statement in Pickaxe, Black's Rubyist nor in the
multiple on-line posts I Googled.

Thank you very much for that excellent response.

Best wishes,
Richard