  Bianchi type III string cosmological models with bulk viscous fluid for
massive string are investigated. To get the determinate model of the universe,
we have assumed that the coefficient of bulk viscosity ($\xi$) is inversely
proportional to the expansion ($\theta$) in the model and expansion ($\theta$)
in the model is proportional to the shear ($\sigma$). This leads to $B = \ell
C^{n}$, $\ell$ and $n$ are constants. The behaviour of the model in presence
and absence of bulk viscosity, is discussed. The physical implications of the
models are also discussed in detail.
