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Figure 2.2. Upper: Geometry of principal bowl forms, not to scale. Many of these forms may have rims other than those shown. Lower: Histogram showing relative sizes and proportions of vessel types described as "plates," "dishes," and "bowls." The shaded blocks represent the vessel maxima (height to diameter ratio) all to the same scale, while the unshaded block represents the vessels if they all had the same height. Vessels are from all areas covered, with precedence given in selection to problematic vessels. Plates appear easily distinguished from dishes, but some bowls are less easily distinguished from dishes. Problematic pieces include those considered "bowls" due to their small diameter, and some of the shallower "bowls" with wide rims. Despite this on the current evidence it does seem possible on a purely proportional basis to put a cut-off between bowls and dishes at 1:3.8 height to diameter ratio. Note that the vessel to far right has height greater than 10 cm, so unshaded block is smaller than shaded block
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