We have combined two unique works and republished them as the second book in our Hydrogen Generator Gas for Vehicles and Engines series to help fill the continuing needs and desires for information in this fascinating field. Contains Construction of a Simplified Wood Gas Generator for Fueling Internal Combustion Engines in a Petroleum Emergency, includes detailed, illustrated instructions for the fabrication, installation, and operation of a Biomass Gasifier. The Handbook of Biomass Gasifier Engine Systems, was initially prepared as a guide for the design, testing, operation and manufacture of small-scale gasifiers.