  Lee. et.al. (1976) analysed the bimetric theory with the help of
parameterized post Newtonian (PPN) formalism. They found that the post
Newtonian limit of the theory is identical with that of general theory of
relativity except for their PPN parameter $\alpha_{2}$, on the basis of
cosmological considerations. In the present paper it is pointed out that
feasibility of such considerations are doubtful in five dimensional bimetric
theory of relativity. As the universe is unique and is governed by physical
laws, many different cosmologies are possible. Examples are given for some
possible cosmological models, which are different, that those of Lee. et.al.
This work is an extension in five dimension of a similar one obtained earlier
by Rosen (1977) for four dimensional space-time.
