at the beginning of the thirteenth century the average yield was probably about six bushels and certainly not more than ten; at the beginning of the fourteenth century the average was less than nine bushels--how much less, whether more or less than six bushels, is not known--at the end of the fourteenth century the yield was about six bushels. TABLE III YIELD OF WHEAT ON THE MANORS OF THE BISHIPRIC OF WINCHESTER[53] _Area sown_ _Produce_ _Ratio produce_ _Date_ _Acres_ _Bushels per acre_ _to seed_ 1208-1209 6838 4-1/3 2-1/3 1299-1300 3353 9[54] 4 1396-1397 2366-1/2 6 3 TABLE IV ACERAGE PLANTED WITH GRAINS ON THE MANOR OF THE BISHOPRIC OF WINCHESTER[55] _Wheat_ _Mancorn and Rye_ _Barley_ 1208-1209 5108 492 1500 1299-1300 2410 175 800 TABLE V YIELD OF WHEAT AT WITNEY[56] _Date_ _Bushels per acre_ _Acres sown_ 1209 3-2/3 417 1277 8-1/2 180 1278 ... 191 1283 8-1/2 ... 1284 10-1/2 ... 1285 7-1/4 ... 1300 (7-10) ... 1340 5-1/2 126 1341 7-1/2 138 1342 6 132 1344 ... 129 1346 5-1/2 127 1347 6-1/2 128 1348 6-3/4 138 1349 4-3/4 128 1350 5-1/4 ... 1351 6-1/2 ... 1352 8-1/2 ... 1353 5 ... 1397 6-1/4 51-1/2