Interest in telepathy during the nineteenth-century developed in the context of ideas of magnetic, nervous and psychic forces said to project from the physical body to cause various phenomena, as seen in the literatures of mesmerism, Spiritualism, and psychical research. An article about cerebral radiations authored by American electrical engineer Edwin J. Houston in 1892 is reprinted and commented. Houston speculated that cerebral waves were projected to other brains via the ether, a process involving resonance with a similarly disposed brain. (...) These ideas were affected by concepts from physics dealing with such forces as magnetism and constructs like the ether. In fact, the phenomena of thought-transference stimulated many speculations involving ideas of brain waves and radiations that were part of a tendency to reduce unexplained phenomena to physical and physiological principles, or in this case, biophysical ones. Houston's paper is one of the most detailed ideas of this sort published in the nineteenth-century. Nonetheless, Houston showed no familiarity with the literature about telepathy of his times. While his article did not originate ideas of this sort, it is a good representative of speculations of the period about what today we refer as physical transmission models of ESP. Keywords: Edwin J. Houston; Telepathy; thought-transference; history of telepathy; brain waves; cerebral radiations. (shrink)

Albert von Schrenck-Notzing, M.D., is one of the most controversial figures in the history of medicine and science. A pioneer of hypnotism and sexology in late 19th century Germany, he was to become the doyen of early 20th century German psychical research. Supported by the philosophers Hans Driesch and Traugott Konstantin Oesterreich and the psychiatrist Eugen Bleuler, his work was attacked by psychologist Max Dessoir and, most fi ercely, psychiatrist Mathilde von Kemnitz (later Ludendorff) and sexologist Albert Moll. This essay (...) traces the career of this unusual character from his early work in hypnotism and sexology to his study of even more contested areas, such as “poltergeist” cases and the experimental study of alleged materialisations and telekinesis. Finally, it analyses the rhetorical structure of charges of fraud, gullibility, and scientifi c incompetence, which Schrenck-Notzing’s name is still associated with. (shrink)

This paper analyses the fraught relationship between physics and the ‘occult sciences’ in the decades around 1900. For some, there was no relationship at all; for others there was a relationship but they did not agree on what it looked like. Many physicists converged with spiritualists, theosophists, and others in interpreting X-rays, the electrical theory of matter, and other aspects of the ‘new’ physics as powerful ways of rendering psychic and occult effects scientifically more understandable. However, they were opposed by (...) commentators on physics who agreed that there was a relationship between the ‘new’ physics and psychical research but that these were two manifestations of a worrying drift of physics into metaphysics and religion. More redoubtable critics were the psychologists who denied that physicists had the experience or experimental skill to cope reliably with the psycho-physical phenomena encountered in psychical research. This paper shows that physicist–psychical researchers were content to ally the ‘new’ physics with religion because it helped vanquish awkward associations with materialism. They also tried to justify the value of their experimental skills by appealing to their expertise in investigating subtle physical effects and ability to create tests that respected the delicate conditions of séances.Keywords: Physics; Psychical research; Ether; Occult; Psychology; Fin-de-siècle. (shrink)

This article analyses three basic concepts of Ludwik Fleck’s Genesis and Development of a Scientific Fact. It shows first that Fleck’s notion of „directed perception“ is closely linked to Jakob von Uexküll’s writings on the „Umwelt“ of animals and humans. The article then proposes to regard the epistemological debates surrounding parapsychology as an important testing ground for the Fleckian concept of „mood“ and his concomitant hypotheses about „the tenacity of systems of opinion and the harmony of illusions“. It finally argues (...) that Fleck’s modification of Wilhelm Jerusalem’s idea of the „social consolidation“ of knowledge helps us to understand the indebtedness of Fleck towards early functionalist sociology as well as his strong belief in „specific historical laws governing the development of ideas“. The historical semantics of Fleck’s works hence proves that his insights are neither marginal nor revolutionary but rather deeply rooted within scientific traditions from the late 19th and early 20th centuries. (shrink)

One of the reasons the history of parapsychology and its ancestor psychical research is intriguing is because it addresses a central issue: the boundaries of science. This article provides an overview of the historiography of parapsychology and presents an approach to investigate the Dutch history of parapsychology contributing to the understanding of this central theme. In the first section the historical accounts provided by psychical researchers and parapsychologists themselves are discussed; next those studies of sociologists and historians understanding parapsychology as (...) deviant and even potentially revolutionary are dealt with; third, more contemporary studies are examined whereby enterprises such as parapsychology are understood as central to the culture in which they arose. On the basis of this analysis a new direction in the historiography of the subject is suggested in the fourth section, centred upon the relation between parapsychology and psychology in the Netherlands throughout the 20th century. In the Netherlands not only were pioneering psychologists such as Gerard Heymans (1857–1930) actively involved in experiments into telepathy, the first professor in parapsychology in the world – Wilhelm Tenhaeff (1894–1981) – was appointed in 1953 at Utrecht University and in the 1970s and 1980s parapsychology had its own research laboratory at Utrecht University in the division of psychology. This unique situation in the Netherlands deserves scholarly attention and makes an interesting case to investigate the much-neglected connections between the fields of psychology and parapsychology in the 20th century. The connections between psychology and parapsychology might help us to understand why parapsychology came to be regarded as a pseudoscience. (shrink)

It is often said that the advent of the Freudian talking cure around 1900 revolutionised the psychiatric setting by giving patients a voice. Less known is that for decades prior to the popularisation of this technique, several researchers had been experimenting with another, written practice aimed at probing the mind. This was particularly the case in France. Alongside neurologist Jean-Martin Charcot’s spectacular staging of hypnotised bodies, ‘automatic writing’ became widely used in fin-de-siècle clinics and laboratories, with French psychologists regularly asking (...) entranced patients to scribble down words to validate their nascent theories on the divided self. This article traces the emergence of automatic writing in French psychological discourse at the close of the 19th century. By focusing on the early work of Dr Pierre Janet and some of his contemporaries, it re-examines the role played by this practice in what Henri Ellenberger famously called ‘The Discovery of the Unconscious’. It also considers the various levels of reconstruction at play in recent historical accounts. What does it mean to give subjects a (written) voice? How does automatic writing differ from the Freudian talking cure as respective expressions of the unspeakable? And how might these questions inform future historical practice? (shrink)

This article analyses three basic concepts of Ludwik Fleck’s Genesis and Development of a Scientific Fact. It shows first that Fleck’s notion of „directed perception“ is closely linked to Jakob von Uexküll’s writings on the „Umwelt“ of animals and humans. The article then proposes to regard the epistemological debates surrounding parapsychology as an important testing ground for the Fleckian concept of „mood“ and his concomitant hypotheses about „the tenacity of systems of opinion and the harmony of illusions“. It finally argues (...) that Fleck’s modification of Wilhelm Jerusalem’s idea of the „social consolidation“ of knowledge helps us to understand the indebtedness of Fleck towards early functionalist sociology as well as his strong belief in „specific historical laws governing the development of ideas“. The historical semantics of Fleck’s works hence proves that his insights are neither marginal nor revolutionary but rather deeply rooted within scientific traditions from the late 19th and early 20th centuries. (shrink)