Though by now almost everyone must have heard of Cricket, the new quality magazine for children ages six to ten, the arrival of the umpteenth publicity release prompts our attempt to shake the persistent critter off our backs. You might as well subscribe if you haven't yet, because the contributors are indeed the stellar names of children's literature -- Waiter de la Mare, Lloyd Alexander, I. B. Singer, Julius Lester, Eleanor Cameron, Jean George, etc., etc. -- and the selections way ahead of anything in the other children's magazines. However, the fact that almost every item is reprinted from already published (or in process of publication) and sometimes prize winning material (an exception being a book review of Charlotte's Web) by famous authors who need no soft cover discovery, we just don't see that the self-applauding Cricket has all that much to chirp about.