Encyclopædia [Encyclopedia] Britannica; or, A Dictionary of Arts, Sciences, and Miscellaneous Literature; Constructed on a Plan, by which the Different Sciences and Arts ade digested into the Form of Distinct Treatises or Systems (18 volumes plus 2 supplementary volumes)

Edinburgh: Printed for A. Bell and C. Macfarquhar, 1801. Third edition. Leather Bound. Very Good. Twenty books in all. ***Will require extra postage due to weight. Shipping outside of the United States is strongly discouraged. Quarto [28 cm] 3/4 brown leather with marbled paper over boards. Gilt tooled spines. Ribbon page-markers. Rubbing to the extremities. Handful of minor chips to the leather spines. Underlying boards exposed occasionally along the surfaces and edges. Periodic light soiling and foxing. "The third edition of the Encyclopædia Britannica, “A Dictionary of Arts, Sciences, and Miscellaneous Literature,” was longer than the second, appearing in parts forming 18 volumes of 14,579 pages (1788–97)...

"The new treatises in the third edition included 'Aerostation' (on balloon flights, treated in the supplement to the second edition), 'Husbandry,' 'Logarithms,' 'Polytheism,' and (in the supplement) 'Galvanism' ('the influence discovered nearly eight years ago by the celebrated Galvani'), and 'Critical Philosophy' (i.e., Kant’s). Indexes were appended to four more treatises: 'Astronomy,' 'Chemistry,' 'Electricity,' and 'Surgery.'” - (https://www.britannica.com/topic/Encyclopaedia-Britannica-English-language-reference-work/Third-edition).