Gustavus Katterfelto (orKaterfelto) (c. 1743–15 November 1799) was a Prussian conjurer, scientific lecturer, and quack who travelled through Georgian England.[1][2]
Christian William Anthony Katterfelto (known as Gustavus) arrived at Hull in September 1776 along with his wife, daughter, and a black kitten. He advertised in the local newspapers:
On the 26th of September - arrived at Hull where he has ever since performed in the Concert-Room with universal Applause, a Son of Col. Katterfelto of the famous Prussian Regiment of Death-Head Hussars, Professor of Natural Philosophy, Mathematics, Astronomy, Geography, Fortification, Navigation etc. For 15 years past he has travelled thro’most Parts of Europe, and spent a considerable Fortune, purposely to improve himself in Philosophy and Mathematics, and has finished a curious Apparatus for his own Amusement, and for the Instruction of the Public. - He will exhibit in Nicholson's Great Room, Coney-Street York, Tomorrow Evening (Oct.9) and every Evening this Week. The Doors will be opened at Six, and the Performance to begin at Seven. Admittance to the three front Seats 2s each, back Seats 1s only. - His various astonishing Performances are fully expressed in Hand-Bills which will be delivered this Day. He goes from this City to Leeds, Wakefield, Halifax etc.
He traveled around Britain until his death in 1799.[3] He performed in London from 1780 to 1784. He was arrested on occasion ("as a rogue and vagabond" at Kendal) for breaking local laws. The widespread flu epidemic of 1782 made him famous as a quack, when he used a solar microscope to show images of microbes he believed were its cause.[4] These "insects" provided him with the catchphrase "Wonders! Wonders! Wonders!" which often headed his advertisements.[5] He lectured in Piccadillyonelectricity, magnetism and the invented terms "styangraphy, palenchics, and caprimantic arts" to impress his audience.[6] After allegedly suffering from a bout of flu, he began to promote Dr Batto's medicine which he claimed had cured him in 12 hours.[7] He sided with the contagion theory of disease that had been proposed by some Arab physicians although he called the causal organisms "insects", claiming that many numbers could be found in a drop of water.[8]
Katterfelto was an accomplished conjurer, who performed with a black cat which he advertised as "evil".[9] He claimed to have launched the first hot air balloon fifteen years before the Montgolfier brothers, and claimed to be the greatest natural philosopher since Isaac Newton.[10][11]
He performed on several occasions for the royal family. The poet William Cowper refers to Katterfelto in The Task.[12] For a while the word "Katerfelto" became synonymous with charlatan.[13]
^Maple, Eric. (1968). Magic, Medicine & Quackery. Hale. p. 124. "Best known of all late eighteenth-century quack buffoons was the mountebank Gustavus Katterfelto, the conjuror who employed a combination of legerdemain, pseudo-science, and clever publicity techniques to fascinate the public for a whole decade."
^Dawes, Edwin A. (1979). The Great Illusionists. Chartwell Books. p. 61
^ abWalker, Andy (18 August 2008). "Insearch of a rogue who told tall tales". The Northern Echo. ProQuest329261459.
^Nash, Jay Robert. (2004). The Great Pictorial History of World Crime, Volume 2. Rowman & Littlefield. p. 364. ISBN1-928831-20-6 "Gustavus Katterfelto launched a successful medical swindle. Passing himself off as a worldly philosopher and scientist, Katterfelto swindled Londoners with his sleight of hand tricks and medicine show for nearly three years. In 1872, he claimed to have invented the Solar Microscope, which he used to detect a deadly plague similar to the Black Death."
^Haslam, Fiona. (1996). From Hogarth to Rowlandson: Medicine in Art in Eighteenth-century Britain. Liverpool University Press. pp. 202-203. ISBN0-85323-630-5
Frost, Thomas. (1876). The Lives of the Conjurors. Tinsley.
Houdini, Harry. (1918). Doctor Katterfelto: One of the Most Interesting Characters in the History of Magic. Magician, Quack Doctor, Pseudo-Philosopher.M-U-M, vol.8 no.69, November 1918. Collected in "Houdini On Magic". ISBN978-0486203843
Paton-Williams, David. (2008). Katterfelto: Prince of Puff. Troubador Publishing. ISBN978-1906510-916
Williams, Neville. (1962). Rogues and Rascals in English History. Collier Books.
