At the beginning of this century, in the neighbourhood of Manchester Square, London, there was an inquisitive boy running about, playing at marbles, and minding his baby-sister. He lived in Jacob's Well Mews, close by, and was learning the three R's at a common day-school. Few passers-by would have noticed him, and none certainly would have imagined that this boy, as he grew up, was to achieve the truest success in life, and to die honoured by the great, the wise, and the good. Yet so it was; and to tell the story of his life, to trace the sources of this success, and to depict some of the noble results of his work, are the objects of this biographical sketch.