“…This question remains unanswered at this time. Analytical attacks on the problem of non-Newtonian flow and that of non-isothermal flow have been made most recently by Griffith (4), and earlier by DeHaven Mori et al,( 6 ) , Mori and Matsumoto ( 7 ) , Glyde and Holmes-Walker ( 8 ) , Ball and Colwell (9), and Colwell and Nickolls (10). An admittedly superficial treatment, but one which nevertheless serves to illustrate the influence of a non-uniform viscosity has been developed by the present author and is presented below (11).…”