The proximity of the Indian tribes to the colonists, furthermore, afforded a condition most suitable for the escape of Indian slaves. Individual testimony, frequent advertisements in the colonial newspapers giving descriptions of fugitive Indian slaves and offering rewards for their capture and return, and the amount of colonial legislation concerning both negro and Indian runaway slaves, show that Indians held in servitude took frequent advantage of the opportunities at hand for their escape, and that their owners used all possible means to regain their lost property. At the time following the Pequot War, Mason complained of the tendency to run away shown by the Pequot slaves in the colonies.[758] The Indians enslaved after King Philip’s War likewise escaped. Mayhew tells of runaway Indian slaves in Massachusetts in 1690.[759] In this same year one Isaac Morrill of New Jersey was arrested at Newbury, Massachusetts, for enticing Indian and negro slaves to run away.[760] The _Boston News Letter_ came into existence, 1704,[761] at about the time when Indian slaves began to be brought into the northern colonies from the Spanish islands and from the Carolinas. Rarely was there an issue of that or the other Massachusetts newspapers from that time down to the Revolutionary period which did not contain an advertisement for a runaway Indian slave. Sometimes the same advertisement was repeated in two or three successive issues,[762] and was often inserted in more than one newspaper. For the capture and return of the fugitives, rewards were offered, sometimes indefinite in nature as “suitable rewards”,[763] sometimes of stated amounts as £3.[764] forty shillings,[765] twenty shillings,[766] £6,[767] £20,[768] £5,[769] £7,[770] £15,[771] four pistoles,[772] fifty shillings.[773] These advertisements relate for the most part to fugitive men and boy Indian slaves, but advertisements relating to runaway women Indian slaves are not lacking.[774] The escapes appear for the most part, though not always, to have been made singly. One advertisement shows two Indian men, two Indian women and an Indian boy belonging to different persons to have escaped together.[775] Captains of vessels were often cautioned in the advertisements against carrying away such fugitive slaves, and any person harboring them or aiding them to escape was threatened with full penalty of the law. All the colonies enacted fugitive slave laws. Some of these laws were applied to slaves in general, some to negroes and “other slaves,” still others to negro, mulatto and Indian slaves. The colonies where slavery was of greatest extent had the most extensive and elaborate laws on the subject, and those colonies where Indian slavery existed to any considerable extent included the term “Indian slaves” in their laws. Pennsylvania made but little provision regarding runaway slaves. Maryland concerned itself more largely with servants.