In this age of high fuel prices and concern with continuing availability of oil, scientists are working on a number of approaches to alternate fuel sources. These concerns may provoke interest in how some people in gas-starved Europe dealt with such problems throughout the war years, 1939-1945. One of the most successful innovations, were the so-called "gas producer" vehicles that utilized the by-products of solid fuel combustion, employing such solids as coal, charcoal, turf, and wood to produce fuel gas for a standard internal combustion engine. This book provides an overview of such...