  We present an x-ray study of freely suspended hexatic films of the liquid
crystal 3(10)OBC. Our results reveal spatial inhomogeneities of the
bond-orientational (BO) order in the vicinity of the hexatic-smectic phase
transition and the formation of large scale hexatic domains at lower
temperatures. Deep in the hexatic phase up to 25 successive sixfold BO order
parameters have been directly determined by means of angular x-ray
cross-correlation analysis (XCCA). Such strongly developed hexatic order
allowed us to determine higher order correction terms in the scaling relation
predicted by the multicritical scaling theory over a full temperature range of
the hexatic phase existence.
