Hydraulic Rams - Their Principles and Construction, Including Some Experiments Carried Out by the Author at the Regent Street Polytechnic and Various Parts of the Country #250158 5,85€
Nevada and California Processes of Silver and Gold Extraction - For General Use, and Especially for the Mining Public of California and Nevada #249844 8,85€
The First Man-Carrying Aeroplane Capable of Sustained Free Flight - Langley's Success as a Pioneer in Aviation #249864 5,85€
The Pattern Maker's Handybook, a Practical on Patterns for Founders - Embracing Information on the Tools, Materials and Appliances Employed in Their Construction #233601 6,85€
A Story of Railway Pioneers - Being an Account of the Inventions and Works of Isaac Dodds and His Son Thomas Weatherburn Dodds #244999 7,85€
