Overview of Stuff You Missed in History Class — Elizabeth Fulhame’s Colorful Chemistry
This episode tells the story of Elizabeth Fulhame (published as “Mrs. Fulhame”), an obscure late-18th-century experimenter whose 1794 book reported careful, home‑based chemistry experiments that anticipated the idea of catalysis and explored metal deposition on textiles and photochemical effects. The hosts summarize what little is known about her life, explain her major experiments and claims, and trace how her work was received by contemporaries and later scientists.
Key points and takeaways
- Elizabeth Fulhame published An Essay on Combustion… (1794), describing 127 representative experiments (out of many more she performed) on metal reduction, combustion, and dyeing cloth with metals.
- She worked without a formal lab—doing experiments at home with simple glassware and a Neuth apparatus—and kept meticulous records over ~14 years.
- Fulhame observed reactions where water enabled reductions and other transformations without being consumed; she framed these as a class of reactions in which a substance facilitates reaction without being used up—what we now call catalysis (term coined later by Berzelius, 1836).
- She demonstrated metal deposition on textiles (gold and silver specks on silk), produced colored effects (purple with gold sheen), and observed sunlight-driven silver and gold chloride reactions—experiments later cited in early photographic literature.
- Her writing shows scientific literacy (references to Black, Priestley, Lavoisier) and a sharp awareness of gendered criticism; she published herself partly to prevent plagiarism and to claim credit.
- Reception was mixed: contemporary praise and citations (e.g., Count Rumford used her experiments as inspiration); outspoken critics included Joseph Priestley; later nineteenth-century chemists and early photography writers cited her work; her contributions faded to a footnote until mid-20th-century rediscovery. All versions of her book are now digitized.
Elizabeth Fulhame — life and context
- Biographical details are sparse: she appears in the record as Mrs. Fulhame, married to Thomas Fulhame (a medical graduate of the University of Edinburgh). Thomas studied chemistry with Joseph Black; some sources suggest an Irish origin for Thomas.
- No definitive birth/marriage/baptism records have been located for Elizabeth; women’s formal access to university instruction was limited (University of Edinburgh didn’t formally admit women until 1892), though public lectures were attended by some women.
- She likely learned chemistry through self-study and her husband’s connections; she began dyeing experiments around 1780 and continued for many years before publishing.
Her experiments and methods
Metal reduction / textile deposition
- She dissolved gold in nitromuriatic acid (aqua regia), prepared salts, immersed silk, and exposed the treated cloth to hydrogen gas (or other reducing environments) over time. Results included purple silk spangled with minute particles of reduced gold and larger gold specks.
- She worked mainly with silk but tried other fabrics and achieved a variety of colors and metallic flecking (including attempts to replicate purple-and-gold fabrics she’d seen).
Catalysis (water-facilitated reactions)
- Fulhame repeatedly observed that certain reductions and combustions occurred only (or more readily) when water was present; sometimes reactions proceeded at room temperature with water but would otherwise need heat or smelting.
- She proposed that water was broken into components that helped the reaction and then reformed—her interpretation was not chemically correct, but she recognized a recurring phenomenon: a substance facilitating reactions without being consumed (an early conceptualization of catalysis).
Photosensitivity / photochemistry
- Treating silk with silver nitrate or gold chloride and exposing it to sunlight produced color changes (blue, red to near-black). Fulhame suggested these reactions could be used for decorating maps and possibly for writing—experiments historians link to early photographic chemistry.
Scientific significance
- Conceptually anticipates catalysis: Fulhame was the first known writer to group and describe such reactions as a class, long before the term “catalysis” was coined (J.J. Berzelius, 1836).
- Practical innovations in metal-based dyeing/decoration of textiles prefigure later industrial and artistic uses.
- Her photochemical observations were referenced in the early history of photography (cited by figures like John Herschel and in mid-19th-century photogenic manuals).
- She used contemporary chemical nomenclature (French nomenclature derived from Lavoisier’s circle) and demonstrated engagement with the major chemistry debates of her day (phlogiston vs. oxygen theory).
Reception and legacy
- Mixed contemporary reception:
- Positive: Reviews and admiration in periodicals (Gentleman’s Magazine, Monthly Review); Benjamin Thompson (Count Rumford) credited her experiments as inspiration for his own work.
- Negative/critical: Joseph Priestley later published a rebuttal dismissing her catalysis interpretation; some contemporaries disputed priority.
- Honors and circulation:
- Named a corresponding member of the Philadelphia Chemical Society; her book was translated into German (1798) and republished in an American edition (1810).
- Historical arc:
- Widely discussed into the early 19th century, cited by early photography and chemistry writers, then largely relegated to footnotes. Rediscovered and reappraised by historians in the mid‑20th century; primary sources now digitized and accessible.
Notable quotes and rhetorical stance
- On persistence of experiments: “I imagined in the beginning that a few experiments would determine the problem, but experience soon convinced me that a very great number indeed were necessary…”
- On publishing to protect credit: she published “in its present imperfect state in order to prevent the ferocious attempts of the prowling plagiarism … from arrogating to themselves … my invention.”
- On gendered criticism (preface excerpt): she mocks and condemns those who are “chilled with horror at the sight of anything that bears the semblance of learning … in the shape of a woman,” and skewers the performative indignation of critics—a strikingly frank defense of a woman scientist for her time.
Primary sources and further reading
- Elizabeth Fulhame, An Essay on Combustion… (1794 London edition). Also: German translation (1798) and American edition (Philadelphia, 1810) — all three are available as digitized scans in major archives.
- Contextual references in the episode: Joseph Black (teacher), Joseph Priestley (supporter-turned-critic), Antoine Lavoisier (oxygen theory), Benjamin Thompson (Count Rumford), John Herschel (early photography).
- For modern context on catalysis: J.J. Berzelius coined the term in 1836; compare Fulhame’s descriptions with later chemical theory and historiography on catalysis.
- Suggested searches: “Elizabeth Fulhame 1794 Essay on Combustion,” digital collections of the British Library, HathiTrust/Google Books for the 1810 edition, histories of early photography and catalysis.
Why this episode matters
- The episode highlights how an under-documented woman made experimentally astute observations that prefigured major chemical ideas (catalysis and photochemistry), how she navigated the scientific culture and gender norms of her day, and how scientific credit and memory can be shaped by publication, networks, and later historiography. For readers interested in the history of chemistry, photography, and women in science, Fulhame is a revealing and inspirational case.