The Princess and the Duchess

As she juxtaposes two highly visible royals--the Princess of Wales and the Duchess of York--London journalist Fairley raises the question of growing jealousy. Fergie, we're shown, absorbed herself into the royal family with ease; Di, on her part, is a maverick in terms of blueblood decorum. These are among the less than profound revelations that, along with such trivia as dress size, lingerie preference and food fancies of the two women, accompany another look at the glittering duo at home and at ``work.'' The differences in background, even though both grew up with divorced parents, are examined and proffered as reasons for their heretofore complementary relationship, and for their individual successes with an admiring public. Fairley does not disappoint collectors of royal trivia; among other things they will learn that the Queen travels with a white, kid-leather toilet seat. Photos not seen by PW. ( July )