From the 25th of Edward III. to the beginning of the reign of Elizabeth, during the space of more than two hundred years, six shillings and eightpence, it appears from several different statutes, had continued to be considered as what is called the moderate and reasonable, that is, the ordinary or average price of wheat. The quantity of silver, however, contained in that nominal sum was, during the course of this period, continually diminishing in consequence of some alterations which were made in the coin. But the increase of the value of silver had, it seems, so far compensated the diminution of the quantity of it contained in the same nominal sum, that the legislature did not think it worth while to attend to this circumstance. Thus, in 1436, it was enacted, that wheat might be exported without a licence when the price was so low as six shillings and eightpence: and in 1463, it was enacted, that no wheat should be imported if the price was not above six shillings and eightpence the quarter: The legislature had imagined, that when the price was so low, there could be no inconveniency in exportation, but that when it rose higher, it became prudent to allow of importation. Six shillings and eightpence, therefore, containing about the same quantity of silver as thirteen shillings and fourpence of our present money (one-third part less than the same nominal sum contained in the time of Edward III), had, in those times, been considered as what is called the moderate and reasonable price of wheat. In 1554, by the 1st and 2nd of Philip and Mary, and in 1558, by the 1st of Elizabeth, the exportation of wheat was in the same manner prohibited, whenever the price of the quarter should exceed six shillings and eightpence, which did not then contain two penny worth more silver than the same nominal sum does at present. But it had soon been found, that to restrain the exportation of wheat till the price was so very low, was, in reality, to prohibit it altogether. In 1562, therefore, by the 5th of Elizabeth, the exportation of wheat was allowed from certain ports, whenever the price of the quarter should not exceed ten shillings, containing nearly the same quantity of silver as the like nominal sum does at present. This price had at this time, therefore, been considered as what is called the moderate and reasonable price of wheat. It agrees nearly with the estimation of the Northumberland book in 1512.