There is no doubt that after the conquest of England by Henry Tudor a cloud of deceit came over the coinage, deceit only ended by Elizabeth’s establishment of the coinage on an honest basis. Comparing the declaration of weights, measures, and coinage by Henry III in 1266 with that of 12 Henry VII in 1496, the latter does not show to advantage. It orders— That every Pound contain 12 ounces of Troy weight and every ounce contain 20 sterlings and every Sterling be of the weight of 32 corns of wheat that grew in the midst of the ear according to the old law of the said land. Meanwhile the Troy ounce of silver was being coined, not into 20, but into 40 sterlings or pennies. But each of these was supposed to weigh 32 wheat-corns just as they did when they were really 20 to the ounce, albeit a Tower ounce. _Whence came the Troy Pound?_ It is probable that the name of the King’s Troy pound came from the marc of Troyes, but it is certain that the English Troy pound no more came from Troyes than the ‘pound Toweres’ came from Tours. There were four principal marcs in France: Marc de Troyes its oz. = 472·1 grains „ „ La Rochelle „ = 443·4 „ „ „ Limoges „ = 436·5 „ „ „ Tours „ = 430·9 „ The marc of Troyes doubled made the livre poids de marc, the Paris standard = 7554 grains. That of La Rochelle, the marc d’Angleterre, would appear from its name to have been, originally at least, the marc of Cologne, Tower standard, but its standard corresponds almost exactly to the marc of Castille. I make inquiries at La Rochelle, and am informed that the La Rochelle mint had at one time been coining for Spain, perhaps at the time of Plantagenet dominion in the South. The marc of Limoges coincides nearly exactly with 8 ounces averdepois of Plantagenet times; it will be remembered that Limoges was for a long time an English Plantagenet city. The marc of Tours is of southern rather than northern type. None of these marcs seem to have any relation with the Troy weight of England.