“…Further, Molla et al [16] have considered a problem of natural convection flow about an isothermal horizontal circular cylinder with temperature-dependent viscosity. Recently, Ahmad et al [17] have studied the effect of temperature-dependent viscosity on free convection over isothermal cylinders of elliptic cross section. Finally, we mention to this end the interesting paper by Ali [18] where he considered the problem of the effect of variable viscosity on mixed convection heat transfer along a vertical moving surface.…”