Their lives ended almost as soon as they began. And every time their tiny bodies were found, in Dumpsters, garbage cans or, in the case of a newborn girl in Queens last fall, on the conveyor belt of a recycling plant, dismay and bewilderment followed. Six dead newborns were found abandoned in the New York City area in 2006, twice as many as in the preceding year, according to Timothy Jaccard, president of the A.M.T. Children of Hope Foundation on Long Island, which offers outreach to expectant mothers and buries discarded babies. The figure does not include the baby born...