Prepared under the auspices of the SAE Fuels and Lubricants Activity Committee. prepared under the auspices of the Powerplant Activity. Prepared under the direction of the Technical Practice Committee. prepared under the direction of the Metals Handbook Committee. prepared under the direction of the ASM International Handbook Committee. prepared under the auspices of Phi delta kappa; Carter V. Good, editor .. Prepared under the auspices of the Division of Technical Information, U.S. Atomic Energy Commission.