Written by Paul N. Hasluck this book was published in 1907. The book has been re-published from the original and contains the whole script, diagrams and formulas. The book has been reformatted and is not just a scanned copy of the original.

The formal title is Pumps and Hydraulic Rams with numerous engravings and diagrams. Chapters include:

Suction Pumps and Lift Pumps
Making Simple Suction Pumps
Pump Cup Leathers
Pump Valves
Ram or Plunger Pumps
Making Bucket and Plunger Pump
Construction of Plumber's Force Pump
Wooden Pumps
Small Pumps for Special Purposes
Centrifugal Pumps
Air-lift, Mammoth, and Pulsometer Pumps
Hydraulic Rams

Methane or biogas is a colourless, odourless, flammable gas and the main constituent, 85% to 90%, of the piped natural gas that we use in our homes in the UK, Europe and the USA.

Methane can be made using simple apparatus and a process known as anaerobic digestion. Anaerobic digestion is one of the most common biological procedures in nature, as the name implies, it means to carry or breakdown in the absence of air. Once you know the principles of this process it is possible to make biogas in small or large quantities from a variety of waste materials. The book describes making an anaerobic digester using an oil drum and a rubber inner tube as the gas storage vessel as well as a larger continuous digester. The book also contains diagrams, list of materials and websites for further reading.

The gas produced can be used for cooking and heating and even for running a gas engine.