NILE When God first formed the crocodile, He started with a rotted log and fitted it with two round marble eyes to watch motionless the murky Nile flowing between straight tall reeds. The tan brown currents, with swirl, make his fitting home, and stinking of things long dead, it is the proper place for the sudden grab upward from the dark, The crush of white teeth into frightened flesh and bone, hearing not the sighing heave of a dying special thing, one miracle ending another. Such is required by reptilian reputation, part of an ancient contract, decided on long ago When God first dreamed of the crocodile.