Young, A. D.2012-06-142012-06-141951-01http://dspace.lib.cranfield.ac.uk/handle/1826/7226As far as the author is aware the derivation of the equations of motion and energy for a turbulent boundary layer in a compressible fluid have not yet been given in detail in any publication. To meet a possible need in this connection this paper puts on record the analysis underlying the equations quoted by the author in Chapter x of the forthcoming Vol. 111 of Modern Developments in Fluid Dynamics.enReport