The standard Green function method is used to model the spatial and an
gular distributions of THG scattering by micro-droplets. These distrib
utions are found to depend critically on the size of the droplets. How
ever, the THG peaks around theta = 30 degrees and 140 degrees are of c
omparable magnitudes and stable. These results are compared with exper
imental observations and the prediction of the surface charge model.