Ports, mediæval, [64]

Post Office, [226]

Pottery trade, [140]

Prices after the Plague, [72]; mediæval, [80]; later, [90], [112], [174], [202]; inflation of, [90], [225]

Productiveness of land, [41]

Protectionism, [169], [216], [227], [237]

Protestant refugees to England, [97], [103], [110], [134]

Railways, [214], [224]

Reforms, needed agricultural, [210]

Rent, mediæval, [15], [22]