An American boy, son of Presbyterian missionaries, was born in Shanghai early in this century. The boy lived two lives, one within the pious church compound, the other along the canal and in the alleys of a traditional Chinese city. There he faced the alley brats' Lady Bandit, heard the shrill screams of a child's foot-binding, learned rank obscenities from passing boatmen, and, while still in short pants, chewed Sen-Sen and ogled snake-charmers in...