Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

James and Stumpf first met in Prague in 1882. James soon started corresponding with a "colleague with whose persons and whose ideas alike I feel so warm a sympathy." With this, a lifelong epistolary friendship began. For 28 years until James's death in 1910, Stumpf became James's most important European correspondent. Besides psychological themes of great importance, such as the perception of space and of sound, the letters include commentary upon Stumpf's (Tonpsychologie) and James's main books (The Principles of Psychology, The Varieties of Religious Experience), and many other works. The two friends also exchange views concerning other scholars, religious faith and metaphysical topics. The different perspectives of the American and the German (European) way of living, philosophizing and doing science are frequently under discussion. The letters also touch upon personal questions of historical interest. The book offers a critical edition and the English translation of hitherto unpublished primary sources. Historians of psychology and historians of philosophy will welcome the volume as a useful tool for their understanding of some crucial developments of the time. Scholars in the history of pragmatism and of phenomenology will also be interested in the volume.

Carl Stumpf (1848-1936) was a German philosopher and psychologist and a visionary and important academic. During his lifetime, he ranked among the most prominent scientists of his time. Stumpf's intention, as evident in his book, Tone Psychology, was to investigate the phenomenon of tone sensation in order to understand the general psychic functions and processes underlying the perception of sound and music. It could be argued that modern music psychology has lost or perhaps ignored the epistemological basis that Carl Stumpf developed in his Tone Psychology. To gain a confident psychological basis, the relevance of Stumpf's deliberations on music psychology cannot be overestimated. Analyses of the essence of tones, complex tones and sounds are fundamental topics for general psychology and epistemology. By the end of this two-volume work, Stumpf had established an epistemology of hearing. The subject of Volume I is the sensation of successive single tones. Stumpf demonstrates that analysis leads to the realisation of a plurality (is there only one tone or are there several tones?), which is then followed by a comparison: an increase may be observed (one tone is higher than the other) or a similarity may be realised (both tones have the same pitch or the same loudness). With almost mathematical stringency, Stumpf developed a topology of tones. Volume II deals with the sensation of two simultaneous tones (musical intervals). The books are stimulating, rewarding and provocative and will appeal to music psychologists, music theorists, general psychologists, philosophers, epistemologists and neuroscientists.

Carl Stumpf (1848-1936) was a German philosopher and psychologist and a visionary and important academic. During his lifetime, he ranked among the most prominent scientists of his time. Stumpf's intention, as evident in his book, Tone Psychology, was to investigate the phenomenon of tone sensation in order to understand the general psychic functions and processes underlying the perception of sound and music. It could be argued that modern music psychology has lost or perhaps ignored the epistemological basis that Carl Stumpf developed in his Tone Psychology. To gain a confident psychological basis, the relevance of Stumpf's deliberations on music psychology cannot be overestimated. Analyses of the essence of tones, complex tones and sounds are fundamental topics for general psychology and epistemology. By the end of this two-volume work, Stumpf had established an epistemology of hearing. The subject of Volume I is the sensation of successive single tones. Stumpf demonstrates that analysis leads to the realisation of a plurality (is there only one tone or are there several tones?), which is then followed by a comparison: an increase may be observed (one tone is higher than the other) or a similarity may be realised (both tones have the same pitch or the same loudness). With almost mathematical stringency, Stumpf developed a topology of tones. Volume II deals with the sensation of two simultaneous tones (musical intervals). The books are stimulating, rewarding and provocative and will appeal to music psychologists, music theorists, general psychologists, philosophers, epistemologists and neuroscientists.

James and Stumpf first met in Prague in 1882. James soon started corresponding with a "colleague with whose persons and whose ideas alike I feel so warm a sympathy." With this, a lifelong epistolary friendship began. For 28 years until James's death in 1910, Stumpf became James's most important European correspondent. Besides psychological themes of great importance, such as the perception of space and of sound, the letters include commentary upon Stumpf's (Tonpsychologie) and James's main books (The Principles of Psychology, The Varieties of Religious Experience), and many other works. The two friends also exchange views concerning other scholars, religious faith and metaphysical topics. The different perspectives of the American and the German (European) way of living, philosophizing and doing science are frequently under discussion. The letters also touch upon personal questions of historical interest. The book offers a critical edition and the English translation of hitherto unpublished primary sources. Historians of psychology and historians of philosophy will welcome the volume as a useful tool for their understanding of some crucial developments of the time. Scholars in the history of pragmatism and of phenomenology will also be interested in the volume.

The Origins of Music was first published in German in 1911. In this text Carl Stumpf set out a path-breaking hypothesis on the earliest musical sounds in human culture. Alongside his research in such diverse fields as classical philosophy, acoustics, and mathematics, Stumpf became one of the most influential psychologists of the late 19th century. He was the founding father of Gestalt psychology, and collaborated with William James, Edmund Husserl, and Wolfgang Koehler. This book was the culmination of more than 25 years of empirical and theoretical research in the field of music. In the first part, Stumpf discusses the origin and forms of musical activities as well as various existing theories on the origin of music, including those of Darwin, Rousseau, Herder, and Spencer. In the second part of the book, he summarizes his works on the historical development of instruments and music, and studies a putatively global range of music from non-European cultures to demonstrate the psychological principles of tonal organization, as well as providing a range of cross-cultural musical transcriptions and analyses. This became a foundation document for comparative musicology, the elder sibling to modern Ethnomusicology, and the book provides access to the original recordings Stumpf used in this process. The Origins of Music is available for the first time in the English language as a result of a collaboration between the European Society for the Cognitive Sciences of Music (ESCOM) and Oxford University Press. It is a fascinating volume for all those with an interest in the history of psychology and music. It appears here in tandem with Self-Portrait,Stumpf's autobiography of 1924, in which he outlines the rich life experiences behind his research career alongside his own explanation of his scientific and cultural legacy.