"In 1628 the price of tobacco in silver had been 3s. 6d. per pound in Virginia. The cultivation increased so rapidly that in 1631 the price had fallen to 6d. In order to raise the price, steps were taken to restrict the amount grown and to improve the quality. The right to cultivate tobacco was restricted to 1,500 polls. Carpenters and other mechanics were not allowed to plant tobacco 'or do any other work in the ground.' These measures were ineffective. The price continued to fall. In 1639 it was only 3d. It was now enacted that half of the good and all of the bad should be destroyed, and that thereafter all creditors should accept 40 lbs. for 100; that the crop of 1640 should not be sold for less than 12d., nor that in 1641 for less than 2s. per lb., under penalty of forfeiture of the whole crop. This law was ineffectual, as the previous ones had been, but it caused much injustice between debtors and creditors by impairing the obligation of existing contracts. In 1645 tobacco was worth only 1-1/2d. and in 1665 only 1d. per lb. "These events teach us that a commodity which is liable to great and sudden changes of supply is not a desirable one to be used as money. "In the year 1666 a treaty was negotiated between the colonies of Maryland, Virginia, and Carolina, to stop planting tobacco for one year in order to raise the price. This temporary suspension of planting made necessary some other mode of paying debts. It was accordingly enacted that both public dues and private debts falling due 'in the vacant year from planting' might be paid in country produce at specified rates. "In 1683 an extraordinary series of occurrences grew out of the low price of tobacco. Many people signed petitions for a cessation of planting for one year for the purpose of increasing the price. As the request was not granted, they banded themselves together and went through the country destroying tobacco plants wherever found. The evil reached such proportions that in April, 1684, the Assembly passed a law declaring that these malefactors had passed beyond the bounds of right, and that their aim was the subversion of the Government. It was enacted that if any persons, to the number of eight or more, should go about destroying tobacco plants, they should be adjudged traitors and suffer death.