 As with the 3rd edition, in which title pages were not printed until the set was complete, and all volumes were given title pages dated 1797, title pages for the 4th edition were sent to bookbinders in 1810, dated that year for all volumes.The editor was Dr. James Millar, a physician, who was good at scientific topics but criticized for being "slow & dilatory & not well qualified".The mathematical articles of Prof. Wallace were widely praised in the 4th edition.