the superstition of a the caul is that luck attends one who born with part of the membrane of the foetal sack on his head... some critics then go on to link david copperfield and remember david saying "I was born with a cual" and think that is the place that salinger got the name since we might all agree that the catcher does have a good amount of allusion to david copperfield and dickens. I think the caul in caulfield also alludes to luck and remember when souls like Mr. Spencer or the secretary at phoebe's school wish him good luck, holden makes it clear such wishes depress him... but mostly I think how the whole concept of being born with a protective sack and that being lucky is about the whole holden caulfield. I even can play with his first name and suggest it's a pun on "hold in." So our hero holds in his luck and protective needs until he bursts with them... there, it wasn't as hard as I thought...I first started talking about cauls and holden caulfield in graduate school and remember taking some rough hits about being too poetic and playful and don't pretend to know if what I'm linking has critical merit or if I have all the caul thinking I put together in l987...but i will when I get my sabbatical in january! sorry to be so swamped with such wonderful bananafish concerns...in point of fact I'm a bananafish@work as well as online and I suppose I'm regretting the time needed to really answer some of the good concerns raised on our list...but we do go on! will