The supply was by no means equal to the demand, for the agents in London of the planters of Virginia, Barbados, St. Christopher's, and other islands were equally clamorous for their share. As for King Charles the Second, he granted the prisoners as a privilege to his favourites, and even mistresses, who generally sold it to the highest bidder. The agent must have had influence to get into the presence of the holder, say of a hundred prisoners sentenced to transportation, and this was only obtainable by largess to door-keepers and servants. Then came the trouble of obtaining delivery from the prison authorities, and here again fees were demanded. In one case that is recorded the amount paid to the gaoler of Newgate was fifty-five shillings a head. But even now the trouble was only beginning. The prisoners were supposed to be delivered at the door of the gaol, and the planter was under a heavy bond not to allow one to escape. He must account for each by a certificate of death on the voyage or of landing in Barbados, on penalty of five hundred pounds for every one missing. It followed, therefore, that a sufficiently strong guard had to be provided, and provision made for attempts at rescue by the prisoners' friends. Even this was not all, for the concession simply granted a certain number, and it rested with the gaoler to palm off the old, weak, and infirm on those who were at all wanting in liberality. Then, at the best the prisoners were hatters, tailors, and haberdashers, rather than agricultural labourers, many of whom ultimately proved valueless. If a large number was available, and there were several applicants, the competition became quite spirited--every one wanted his pick before the others, and the gaoler made the best of the occasion, leaving those to whom he allotted the refuse to curse their evil fortune. Up to the passing of the Navigation Act the Dutch had been free to trade with English colonies, and had brought a fair number of negroes; and afterwards the king established the Royal African Company to prevent the supply being cut off. The average price of the African was then about £16 or 2,400 pounds of sugar, but the Dutch sold their slaves for a little less, which led the planters to evade the Navigation Act when they had opportunities.