Plastering, [75]

Pliny, references to his account of pisé, [25], [57]

Plugs, [86], [87]

Protection, [75]

Rain, [67]

Rammer, the, [59], [60]

Ramming, [62], [76]

Rate of work, [63]

Rendering, [70]

Rods versus bars, [75], [76]