  In the first part of this paper we linearize and solve the Van der Pol and
Lienard equations with some additional nonlinear terms by the application of a
generalized form of Cole-Hopf transformation. We then show that the same
transformation can be used to linearize Painleve III equation for certain
combinations of its parameters. Finally we linearize new forms of Burger's and
related convective equations with higher order nonlinearities.
