He immediately drew up and published "Some Account of Pennsylvania, etc.;" and then "Certain Conditions or Concessions, etc.," to be agreed on between himself and those who wished to purchase land in the province. These having been accepted by many persons, he proceeded to frame the rough sketch of a constitution, on which he proposed to base the charter of the province. The price fixed on land was forty shillings, with the annual quit-rent of one shilling, for one hundred acres; and it was provided that no one should, in word or deed, affront or wrong any Indian without incurring the same penalty as if the offence had been committed against a fellow-planter; that strict precautions should be taken against fraud in the quality of goods sold to them; and that all differences between the two nations should be adjudged by twelve men, six of each. And he declares his intention "to leave myself and my successors no power of doing mischief; that the will of one man may not hinder the good of a whole country." It was this constitution, substantially, which Burke, in his "Account of the European Settlements in America," describes as "that noble charter of privileges, by which he made them as free as any people in the world, and which has since drawn such vast numbers of so many different persuasions and such various countries to put themselves under the protection of his laws. He made the most perfect freedom, both religious and civil, the basis of his establishment; and this has done more toward the settling of the province, and toward the settling of it in a strong and permanent manner, than the wisest regulations could have done on any other plan."