Where a bequest has been made to any child or other lineal descendant of the testator, and the legatee dies in the lifetime of the testator, but any lineal descendant of his survives the testator, the bequest shall not lapse, but shall take effect if the death of the legatee had happened immediately after the death of the testator, unless a contrary intention appears by the Will.
     Illustration
     A makes his Will, by which he bequeaths a sum of money to his son, B, for his own absolute use and benefit. B dies before A, leaving a son, C, who survives A, and having made his Will whereby he bequeaths all his property to his widow. D. The money goes to D.