Beef cattle (steer) manure was obtained from a source that was free of soil contamination, and subsequently dried and pulverized. Replicate batch pyrolyses were carried out in stainless steel, glass, and iron tubes utilizing axial flow, at various levels of elevated temperature, and at atmospheric and lower pressures. Exhausts were carried by inert gas to traps and condensors. Qualitative separations and extractions were performed to determine the presence and quantity of various gases, ash, tar, and organics. Many constituents were extracted, but in such small quantities that their value may not pay for the cost of pyrolizing. Larger scale pyrolyzing units should be tested to either confirm or disprove these findings. (Author)