too, it is only with regard to certain commodities that the colonies of Great Britain are confined to the market of the mother country. These commodities having been enumerated in the Act of Navigation and in some other subsequent acts, have upon that account been called enumerated commodities. The rest are called non-enumerated, and may be exported directly to other countries provided it is in British or Plantation ships, of which the owners and three-fourths of the mariners are British subjects.

Among the non-enumerated commodities are some of the most important productions of America and the West Indies; grain of all sorts, lumber, salt provisions, fish, sugar and rum.

Grain is naturally the first and principal object of the culture of all new colonies.