 The third edition was published from 1788 to 1797 in 300 weekly numbers (1 shilling apiece); these numbers were collected and sold unbound in 30 parts (10 shilling, sixpence each), and finally in 1797 they were bound in 18 volumes with 14,579 pages and 542 plates, and given title pages dated 1797 for all volumes.Macfarquhar again edited this edition up to "Mysteries" but died in 1793 (aged 48) of "mental exhaustion"; his work was taken over by George Gleig, later Bishop Gleig of Brechin (consecrated 30 October 1808).James Tytler again contributed heavily to the authorship, up to the letter M. Andrew Bell, Macfarquhar's partner, bought the rights to the "Britannica" from Macfarquhar's heirs.