and one from Green Street Green, south-east of Bromley in west Kent (Payne
1900, 1: Payne 1902, lxiii). No other forms of amphorae can be recognised
amongst material examined from the central-northern region of Kent.
The Jaccard correlation coefficients for the Hadrianic-early
Antonine and mid-Antonine to mid-third century periods show a general
increase in similarity between assemblages of the five sites (Canterbury,
Brenley Corner, Ospringe, Radfield and Rochester) studied. Coefficients of
70 per cent or a higher degree are recorded for Canterbury: Brenley Corner
in both periods (as in the Flavian period,
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taking all types studied into account), and for Canterbury:Ospringe and
Canterbury:Radfield in the latter. The coefficients for Rochester and the
other sites range from 45 per cent to 65 per cent over both periods,
somewhat lower than those for Canterbury (50 per cent to 75 per cent). The
widespread circulation of imported colour-coated wares, ‘Upchurch’ fine
grey wares, and BB2, and the general adoption of buff and oxidised ware
mortaria may provide the main reasons for the increase in similarity of
assemblages. The
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