 To this demand they presently acceded, and in July, 1866, a new board, committed to a new plan, was appointed.Meantime Mr. Kirkwood had been commissioned to go to Europe to study the subject of filtration, and Colonel Flad was left as acting chief engineer.In December, 1866, a revised plan, with intake and settling basins at Bissell Point and a distributing reservoir on Compton Hill, substantially as afterwards built, was presented.