ON PARAMETERS OF THE LEVI-CIVITA SOLUTION

The Levi-Civita (LC) solution is matched to a cylindrical shell of an anisotropic fluid. The fluid satisfies the energy conditions when the mass parameter a is in the range 0 less than or equal to sigma less th an or equal to 1. The mass per unit length of the shell is given expli citly in terms of sigma, which has a finite maximum. The relevance of the results to the non-existence of horizons in the LC solution and to gauge cosmic strings is pointed out.