Geometric Turning: Comprising a Description of The New Geometric Chuck Constructed by Mr. Plant, of Birmingham. Directions for Its Use, and A Series of Patterns Cut By It, With Explanations of the Mode of Producing Them, and an Account of a New Process of Deep Cutting and of Graving on Copper. By H.S. Savory. London: Longmans, Green, and Co. 1873.