[34] Laws of Pennsylvania (ed. 1742), p. 354, ch. 287. Possibly some change in the currency made this change appear greater than it was.
[35] Carey and Bioren, Laws, I. 371; Acts of Assembly (ed. 1782), p. 149; Dallas, Laws, I. 406, ch. 379. This act was renewed in 1768: Carey and Bioren, Laws, I. 451; Penn. Col. Rec., IX. 472, 637, 641.
[36] Penn. Col. Rec., VIII. 576.
[37] A large petition called for this bill. Much altercation ensued with the governor: Dallas, Laws, I. 671, ch. 692; Penn. Col. Rec., X. 77; Bettle, in Penn. Hist. Soc. Mem., I. 388–9.
[38] Dallas, Laws, I. 782, ch. 810.
[39] Ibid., I. 838, ch. 881.
[40] There exist but few estimates of the number of slaves in this colony:—
| In | 1721, | 2,500–5,000. | Doc. rel. Col. Hist. New York, V. 604. |
| " | 1754, | 11,000. | Bancroft, Hist. of United States (1883), II. 391. |
| " | 1760, | "very few." | Burnaby, Travels through N. Amer. (2d ed.), p. 81. |
| " | 1775, | 2,000. | Penn. Archives, IV 597. |
[41] Dallas, Laws, II. 586.
[42] Cf. Argonautica Gustaviana, pp. 21–3; Del. Hist. Soc. Papers, III. 10; Hazard's Register, IV. 221, §§ 23, 24; Hazard's Annals, p. 372; Armstrong, Record of Upland Court, pp. 29–30, and notes.