[197] "Wanted to purchase, a good Negro Wench.... If to be sold on terms of freedom by far the most agreeable." _Pa. Packet_, Aug. 22, 1778. In 1791 Caspar Wistar bought a slave for sixty pounds "to extricate him from that degraded Situation" ..., his purpose being to keep the negro for a term of years only. MS, Misc. Coll., Box 10, Negroes. Numerous other examples among the same MSS. [198] "I, John Lettour from motives of benevolence and humanity ... do ... set free ... my Negro Girl Agathe Aged about Seventeen Years. On condition ... that she ... bind herself by Indenture to serve me ... Six years".... MS. _ibid. Cf._ MS. Abstract Rec. Abington Monthly Meeting, 372 (1765). [199] "I Manumit ... my Negro Girl Abb when she shall Arrive to the Age of Eighteen Years ... (on Condition that the Committee for the Abolition of slavery shall make entry according to Law ... so as to secure me from any Costs or Trouble on me or my Estate on said Negro after the age of Eighteen Years) ... Hannah Evans." MS. Misc. Coll., Box 10, Negroes. _Cf._ _Stat. at L._, X, 70. At times this might become an unpleasant reality. _Cf._ MS. State of a Case respecting a Negro (Ridgway Branch). CHAPTER V. THE DESTRUCTION OF SLAVERY--ABOLITION. The events which led to the extinction of slavery in Pennsylvania fall naturally into four periods. They are, first, the years from 1682 to about 1740, during which the Germans discountenanced slave-holding, and the Friends ceased importing negroes; second, the period of the Quaker abolitionists, from about 1710 to 1780, by which time slavery among the Quakers had come to an end; third, from 1780 to 1788, the years of legislative action; and finally, the period from 1788 to the time when slavery in Pennsylvania became extinct through the gradual working of the act for abolition.