Orford - Modern Optical Instruments and Their Construction - New paper - X555z

Mansfield - Electromagnets Their Design and Construction - New paper - X555z

Hydraulic Rams: Their Principles and Construction (Classic Reprint)

Clarke - Hydraulic Rams Their Principles and Construction - New hardb - X555z

Jepson - Cams and the Principles of Their Construction - New paperback - X555z

Clarke - Hydraulic Rams Their Principles and Construction A Handbook - X555z

Dwyer - Principles and Practice of Hydraulic Engineering - New paperba - X555z

Gelpke - Hydraulic Turbines Their Design and Installation - New paper - X555z