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Encyclopædia Britannica Third Edition

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Title: Encyclopædia Britannica Third Edition  
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Language: English
Subject: Encyclopædia Britannica, History of the Encyclopædia Britannica, Moore's Dublin Edition, 1797 in Scotland, List of encyclopedias by branch of knowledge
Collection: 1797 Books, 1797 in Scotland, Encyclopædia Britannica
Publisher: World Heritage Encyclopedia

Encyclopædia Britannica Third Edition

Encyclopædia Britannica, Third edition, 1797. Photo includes 18-volume third edition of 1797 plus two-volume supplement dated 1803.

The Encyclopædia Britannica Third Edition (1797) is an 18-volume reference work, an edition of the Encyclopædia Britannica. It was developed during the encyclopedia's earliest period as a two-man operation initiated by Colin Macfarquhar and Andrew Bell, in Edinburgh, Scotland. Most of the editing was done by Macfarquhar, and all the copperplates were created by Bell.


  • History of the edition 1
  • Content and contributors 2
  • Piracy 3
  • The Supplement to the Third Edition, dated 1801. Second edition of supplement dated 1803 4
    • References 4.1

History of the edition

The third edition was produced between 1788 and 1797. Colin Macfarquhar, the editor of volumes 1 - 12, up to "Mysteries," died in 1793, age 48, of "mental exhaustion". His heirs were bought out by Bell, who became sole owner of Britannica. Bell hired

...that, by the Wisdom of Your Councils, and the Vigour of Your Fleets and Armies, Your MAJESTY may be enabled soon to restore Peace to Europe; that You may again have leisure to extend Your Royal Care to the Improvement of Arts, and the Advancement of Knowledge; that You May Reign long over a Free, Happy and a Loyal People...
—George Gleig, in the Dedication of the 3rd edition of the Encyclopædia Britannica

Like the second edition, the volumes were written over a long period, from volume 1 in 1788 to volume 18 in 1797. Unlike the second edition, the title pages were not printed with their volumes but were printed and sent to subscribers when the set was complete, and dated the year of completion. All volumes of the 3rd edition have title pages dated 1797. The encyclopedia continued to be printed, in complete sets, for many years, with all the volumes still dated 1797. In addition to the legitimate sets printed in Edinburgh, pirated sets were being printed in Dublin by James Moore and Philadelphia by Thomas Dobson. In Edinburgh, 10,000 complete sets were printed, according to Robert Kerr[2] or 13,000 copies according to Constable. In addition, there were 2,000 copies of Dobson's and an unknown number by Moore.[3] By contrast, only 1,500 copies of the second edition were printed, all unbound.[4] The quality of the printing appears better than in previous editions.

Some printings of the Third edition contain 20 volumes; the first 18 are text, and volumes 19 and 20 are the 500+ copperplates and maps. Other printings are 18 volumes with all the copperplates and maps interspersed throughout at their proper places.

In 1797, Fath Ali Shah was given a complete set of the Britannica's 3rd edition, which he read completely; after this feat, he extended his royal title to include "Most Formidable Lord and Master of the Encyclopædia Britannica".

Content and contributors

Illustration of William Herschel's Grand Telescope of 1789.
Thomas Thomson was recruited by Britannica in 1796 to amend the Chemistry article, which had been written, probably by Tytler, using archaic ideas and terminology. Before beginning to re-write the entire article for the supplement, he authored this chart, to be used as an appendix to the article in the 3rd edition, showing the new nomenclature that Lavoisier, et al. had introduced in 1787.[5]

Several noted authorities contributed to this edition, such as Dr. Thomas Thomson (brother of James) who introduced the first usage of chemical symbols in the 1801 supplement (see below), and John Robison, Secretary of the Royal Society of Edinburgh, who wrote on natural philosophy. The 3rd edition is also famous for its bold article on "Motion", which regarded Isaac Newton's theory of gravitation as erroneous. Instead, authors James Tytler and Gleig wrote that gravity is caused by the classical element of fire. They seem to have been influenced by William Jones's Essay on the First Principles of Natural Philosophy (1762), which in turn was based on John Hutchinson's MA thesis, Moses' Principia, which was written in 1724 but rejected by Oxford University. Nevertheless, Gleig was sanguine about the errors of the 3rd edition, repeating William Smellie's sentiment in the 1st edition quoted in the main article:

For perfection seems to be incompatible with the nature of works constructed on such a plan, and embracing such a variety of subjects.
—George Gleig, in the 3rd edition of the Encyclopædia Britannica

The maps in the 3rd edition are outdated, as they are the same maps that were used in the first edition of 1771 and second edition of 1784.

Table of chemical symbols used in the third edition, is exactly reproduced from the Second edition of 1784.

The preface is in vol. 1 but was dated 1797, so it apparently was sent with the title pages to bookbinders that year. It was written by Gleig, which names the authors of some of the longer articles. In it, Gleig states, "Aerology, Aerostation, Chemistry, Electricity, Gunnery, Hydrostatics, Mechanics, with most of the separate articles in the various branches of natural history, we have reason to believe were compiled by Mr. James Tytler, chemist; a man who, though his conduct has been marked by almost perpetual imprudence, possesses no common share of science and genius." Tytler's contributions stop in fact at the letter M. Tytler's very long article in the second edition on Medicine, "was revised and improved for the present by Andrew Duncan, M.D., fellow of the Royal Society of Edinburgh, and Professor of the Institutes of Physic in the University." He also states that Motion was written by himself and Tytler.

The only color plate to appear in the third edition, is hand-colored. The blue represents the horizon, the green in the center is the city of Chester, England, and the red is the river Dee.

The list of authors goes on, "Mary Queen of Scots, Instinct, Love, Metaphysics, Miracle, Moral Philosophy, Oath, Passion, Plastic Nature, Polytheism, Prayer, Slavery, and Supper of the Lord were contributed by Gleig, editor of the last 6 volumes." Blind was written by Dr. Blacklock and Dr. Moyes, who were both blind. Education was written by Mr. Robert Heron; Grammar and Theology were written by Gleig and the Rev. James Bruce; Music by Dr. Blacklock; History of Art by Wm. Maxwell Morrison; Mysteries, Mythology and Philology by David Doig; Navigation, Parallax, Pendulum, Projection, Ship Building, and Naval Tactics by Andrew Mackay; and John Robison is credited with Physics, Pneumatics, Precession, Projectiles, Pumps, Resistance of fluids, Roof, Rope making, Rotation, Seamanship, Signals, Sound, Specific Gravity, Statics, Steam, Steam Engine, Strength of materials, Telescope, Tide, and Water Works. Philosophy was written by Gleig and Robison; Physiology by Dr. John Barclay; French Revolution by Gleig and Mr. Forsythe; and the articles Oxygen and Phlogiston were written by John Rotheram of St. Andrews.

There is a color plate, opposite page 208 in volume 1, named "2nd plate II" in the Aerostation article, although it was printed in B&W and colored by hand.[6] The aerostation article describes balloon flight from 1783 to 1788, but Tytler does not mention his own balloon flights of 1784. Tytler's earlier treatise on balloon flight, written in 1784, appeared in the 200-page appendix to the second edition, in Volume 10 under "Air".


The first American encyclopedia, Dobson's Encyclopædia, was based almost entirely on the 3rd edition of the Britannica and was published at nearly the same time (1788–1798), together with an analogous supplement (1803), by Scottish printer Thomas Dobson. Dobson, an Edinburgh native and master printer who learned his craft in that city while the first two editions were being produced there, relocated to America in 1783. The first United States copyright law was passed on 30 May 1790—although anticipated by Section 8 of Article I of the United States Constitution (ratified 4 March 1789)—but did not protect foreign publications such as the Britannica. Piracy of the Britannica in America became a problem again in the 9th edition (1889).

Pirated copies of the 3rd were also sold in Dublin by James Moore under the title, Moore's Dublin Edition, Encyclopædia Britannica; this was an exact reproduction. By contrast, Dobson's work had various corrections and amendments for American readers, especially in the supplement.

The Supplement to the Third Edition, dated 1801. Second edition of supplement dated 1803

After the death of Macfarquhar, Andrew Bell was sole owner of Britannica. His son-in-law Thomson Bonar set about to produce a supplement to update the encyclopedia.

Two volumes were produced in 1801 to supplement the Third edition. A second edition of the two volumes, "with improvements", was printed in 1803. Both versions were printed by John Brown, Anchor Close, Edinburgh. In both versions, the articles are ordered alphabetically and the volumes contain about 800 pages each. The 1803 edition has A-I in volume 1 and I-Z in volume 2. A new article on Chemistry, 190 pages in length, written by Thomas Thomson of Edinburgh, is meant to completely replace the 261-page article in the main encyclopedia, written by James Tytler. Much new information about oxygen, combustion, and disproof of the phlogiston theory had been discovered since Tytler's day, and are explained in the supplements. A new and quickly growing list of chemical elements and their compounds was replacing the former system, which contained only the elements earth, air, water, and fire. Thomson also wrote new articles on Mineralogy, Combustion, and a 90-page article named Substances, all pertaining to Chemistry.[7] Interestingly, Thomson would go on to write the article Chemistry for the 7th edition of Britannica, 40 years later.

George Washington, who does not have his own article in the Third edition, has a 4-page article in the Supplement. John Robison of Edinburgh wrote new articles: Arch, Astronomy, Carpentry, Center, Dynamics, Electricity, Impulsion, Involution and Evolution of Curves, Machinery, Magnetism, Mechanics, Percussion, Piano-Forte, Position, Temperament, Thunder, Trumpet, and Watchwork. The French Revolution is also given a continuation, by Gleig.

The two volumes of the Supplement contain 50 copperplates, none of which were produced by Bell. Bonar retained sole ownership of the supplement's copyright. In the creation of the 4th edition of Britannica, which Bell started in 1800, none of the work from the supplements could be used, as Bell did not have the copyright, and Bonar wanted too much money for his liking. This event caused a feud between Bonar and Bell which was never resolved during Bell's lifetime.[8] Bell died in 1809, and the 4th edition was completed the next year. Upon Bell's death, one of Britannica's major distributors, Archibald Constable, bought the encyclopedia, and also obtained Bonar's copyright by making him part owner of Britannica.


  1. ^ Matthew, H. C. G. "Thomson, James".   (Subscription or UK public library membership required.)
  2. ^ Robert Kerr, Memoirs of the Life, Writings and Correspondence of the Late Mr William Smellie (1811) i. 364–5.
  3. ^ Archibald Constable, "Memoirs," ii. 312, this quote and reference itself were taken from the 11th edition of Britannica in the article "Encyclopedia."
  4. ^ Kogan, "The Great EB, "The Story of Encyclopedia Britannica," page 21.
  5. ^ This chart, which measures 15" by 22" and folds up several times to fit in the volume, was sent with instructions that it be bound at the end of the Chemistry article in the main encyclopedia. This whole story can be read in detail in the preface to the 7th edition, as well as in David Brewster's article for the Edinburgh Review, which he wrote reviewing the 7th edition when it was published in 1842
  6. ^ Encyclopædia Britannica 3rd edition, 1797, page 208
  7. ^ from the preface to the second volume of the 1803 edition of the Supplement.
  8. ^ The Great EB, page 26
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