... founded an orphan-house and school, laying the first brick himself for the building, March 25, 1740. He named it Bethesda —a house of mercy. It afterwards became eminently useful. Mr. Whitefield was early accustomed to preach to large congregations assembled in the open air. He travelled and preached much in America. On Boston Common he addressed 20,000 people at one time, and was distinct...