POTT, Percivall (1714-1788). Observations on the nature and consequences of those injuries to which the head is liable from external violence. London, 1768. 8o (209 x 131 mm). 2 engraved plates (occasional spotting to text). Panelled calf antique. Provenance: Benjamin Colles, 1768 (inscription); George Parker M.D., 1912 (bookplate); James MacKenzie Davidson (bookplate). Second edition. Norman 1736. -- [Bound with:] POTT. Some few general remarks on fractures and dislocations. London: L. Hawes, W. Clarke, R. Collins, 1768. 8o (209 x 131 mm). 2 engraved plates (slight staining to edges of some leaves, not affecting text). FIRST EDITION. Norman 1734. -- [With:] POTT. Observations on the nature and conseequences of those injuries to which the head is liable from extreme violence. London: L. Hawes, W. Clarke, R. Collins, 1768. 8o (202 x 123 mm). 2 engraved plates (light browning throughout). Provenance: J.H Wilson (inscription); H. Barker (inscription); University of Pennsylvania Library (stamp, titlepage and Q1; perforated stamp on titlepage, over imprint). Second edition. Norman 1735. -- [With:] POTT. Remarks on that kind of palsy of the lower limbs. London: J. Johnson, 1779. 8o (202 x 122 mm). (Occasional foxing to titlepage and some pages of text). Half sheep (rebacked), contemporary marbled boards, new gilt-lettered spine label. Provenance: Society of Apothecaries, 1831 (bookplate); J. Barker, M.D. (inscription). FIRST EDITION. Norman 1738. -- [Bound with:] POTT. Further remarks on the useless state of the lower limbs. London: J. Johnson, 1782. 8o (202 x 122 mm). 5 engraved plates by R. Laurie (offsetting to I4 from plates; all plates foxed and browned). Provenance: extensive manuscript medical notes on verso of half-title and on 7 leaves and endpaper at end of text, dated variously from 1789-1815. FIRST EDITION. Norman 1738a. (3)