Two-page article from Engineering (11 December 1868) reproducing Ewin Matheson's paper to the Society of Engineers on George Ashcroft's accumulator cotton press, built by Andrew Handyside and Co. of Derby. It discusses the cotton trade, freight costs, and why compressing bales matters for India and Egypt. It surveys earlier lever, screw and hydraulic presses (McComb, Mason, Hodgart, Nasmyth), then describes the three-ram hydraulic press with its accumulator, differential cylinder and revolving boxes. An engraving and three diagrams illustrate the machinery.