Marginal Note Format

[Bruce Pourciau]

Expecting the default format for a Marginal Note to be ragged right  
(when it's in the right margin) and Small text size (like footnotes),  
I was surprised to see full justification, which produced huge spaces  
between words of course, and normal size text. How do I make my  
marginal notes ragged right and small text size, without applying this  
format to each individual marginal note?

Bruce