The Spanish Indians were considered especially undesirable. Accordingly, an act of 1722 imposed upon all such Spanish Indians, negroes, mulattoes and mustees imported, a duty of £50 current money of the province.[842] The duty on Indian slaves was levied without regard to age, while that on negro slaves was graduated according to age. A report to the Board of Trade, February 2, 1736, gave the duty on negro slaves imported from Africa above ten years old as £10; under ten years old, £5; and on all Indians imported, £50 each.[843] The following was the tariff schedule on negroes and Indians in force in 1775.[844] “Indians imported as slaves, each £50. Negroes or slaves, four feet two inches or more in height, each £10. Negroes, under four feet two, and above three feet two inches, each £5. Negroes, under four feet two, and above three feet two inches, sucking children excepted, each 2£ 10s. Negroes or slaves from any of his Majesty’s plantations in America, where such slaves have been for six months or more, unless imported by the owners with design to be employed on their own account, besides the above £10, £5, and £2 10s., each slave, £50.” The earliest act passed in Virginia to check the importation of negroes, that of 1699, imposed a duty of fifteen shillings per poll upon every servant not born in England or Wales, and twenty shillings for every negro or other slave imported into the colony. This duty was continued or increased by a number of temporary acts between 1669 and 1776.[845] The acts were worded “all slaves” or “negroes and other slaves”. Thus import duties were levied upon Indian as well as negro slaves. A statute of 1710 advanced the duty on negroes to £5 per head, and placed a duty of twenty shillings on Indians imported by land.[846] The difference in the amount of the duties is indicative of the relative amount of danger attached by the colonists to the presence of the two classes of slaves in the colony. At the time of the Tuscarora War, the northern colonies realized fully the possible results of the importation of the captives sold in their communities. Some of them in consequence passed laws to ward off danger from this source. In 1712, Rhode Island passed an act levying a duty of forty shillings on every Indian brought into the colony. The act was enforced by severe penalties, and every ship owner was required to give bond to the amount of £50 for observing it.[847] New Hampshire, in 1714, levied the heavy duty of £10 on the importation of any Indian into the province.[848]