
Erasmus Darwin (1731-1802) was the grandfather of Charles Darwin. Erasmus was a fulltime physician who traveled an average of 10,000 miles a year to visit patients. He was a founder of the Lunar Society of Birmingham, and a prolific inventor. Among his designs were a canal lift, a speaking machine, a pantograph handwriting copier, the steering system used by modern automobiles, a steam turbine, a hydrogen/oxygen rocket engine, and a multi-mirror telescope. Erasmus was a friend of Benjamin Franklin and a supporter of American independence.
Erasmus Darwin translated Linnaeus from Latin to English, inventing dozens of botanical terms in the process. His two long poems,
The Economy of Vegetation and
The Loves of Plants (combined as
The Botanic Garden) introduced mainstream readers to the sciences, especially plant biology, with hundreds of pages of essays and notes explaining the concepts in Darwin’s verse. Erasmus used the poems to comment on the events of the day, making no secret of his support for abolition of slavery and the French Revolution.
Zoonomia was Erasmus Darwin’s major scientific publication and the leading medical/biological book of its day. Published in London in 1796,
Zoonomia was reprinted the same year in New York, by “T. & J. Swords, printers to the Faculty of physic of Columbia College,” and again the following year by Thomas Dobson of Philadelphia. A “second edition” was published in 1803 by “Thomas and Andrews” of Boston. By 1818, a “Fourth American Edition” was printed in Philadelphia, by Edward Earle. The continued popularity of
Zoonomia over more than two decades suggests a wide readership outside of medical schools. The 1815 “Catalog of the Library of the United States” lists
Zoonomia,
The Botanic Garden, and Erasmus’ posthumous poem,
The Temple of Nature.
Like his grandson, Erasmus Darwin wrote about evolution through natural selection. Chapter 39 of
Zoonomia, “On Generation,” presents Erasmus’ ideas on competition, extinction, and how “different fibrils or molecules are detached from…the parent…to form” the child.
The Temple of Nature goes even farther, declaring “all vegetables and animals now existing were originally derived from the smallest microscopic ones, formed by spontaneous vitality” in ancient oceans.
Zoonomia was immensely successful. In addition to American and Irish editions, it was translated into German, Italian, French and Portuguese. The European Magazine said
Zoonomia “bids fair to do for Medicine what Sir Isaac Newton’s
Principia has done for Natural Philosophy.” The Vatican responded to Darwin’s ideas by placing
Zoonomia on its
Index of banned books.
The Temple of Nature was reviled by the
Anti-Jacobin Review for its “total denial of any interference of a deity,” while the
Gentleman’s Magazine called the poem “glaringly atheistical.” Even Erasmus one-time friend, Unitarian Joseph Priestley, said “if there be any such thing as atheism, this is certainly it.” Priestley was living in Pennsylvania by this time, and may have seen the poem in T. & J. Swords’ 1804 American edition.
Erasmus Darwin was elected to the American Philosophical Society in 1793. His fame in the new United States may be partly due to his friendship with Franklin and sympathy for revolutionary struggles in America and France. And it may be partly due to
Zoonomia, which was read widely in the nation’s new medical colleges. But Erasmus popularity among regular people may also spring from his straightforward, secular presentation of evolutionary ideas, and his skepticism of authority. Erasmus warned against unreasoning belief. “In regard to religious matters,” he said, “there is an intellectual cowardice instilled into the minds of people from their infancy; which prevents their inquiry: credulity is made an indispensable virtue; to inquire or exert their reason in religious matters is denounced as sinful; and…is punished with more severe penances than moral crimes.”
This post based on Desmond King-Hele's
Erasmus Darwin, A Life of Unequalled Achievement (London: Giles de la Mare, 1999), and editions of Darwin's books available on google books.