Abstract
The “volume” of the diffeomorphism group of a surface depends on the metric on the surface, a dependence distinct from that of the Faddeev-Popov determinant. Assuming such a dependence can be consistently described by a natural extension of the ansatz of David, and Distler and Kawai, an anomalous mixing between the conformal factor and the bosonized ghost field above c = 1 results. Consequences for the physics of strings above c = 1 are indicated.
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