This book discusses three linguistic projects carried out in the seventeenth century: the artificial languages created by Dalgamo and Wilkins, and Leibniz's uncompleted scheme. It treats each of the projects as self contained undertakings, which deserve to be studied and judged in their own right. For this reason, the two artificial languages, as well as Leib niz's work in this area, are described in considerable detail. At the same time, the characteristics of these schemes are linked with their intellectual context, and their multiple interrelations are examined at some length. In this way, the book seeks to combine a systematical with a historical ap proach to the subject, in the hope that both approaches profit from the combination. When I first started the research on which this book is based, I intended to look only briefly into the seventeenth-century schemes, which I assumed represented a typical universalist approach to the study of lan guage, as opposed to a relativistic one. The authors of these schemes thought, or so the assumption was, that almost the only thing required for a truly universal language was the systematic labelling of the items of an apparently readily available, universal catalogue of everything that exists."

This book discusses three linguistic projects carried out in the seventeenth century: the artificial languages created by Dalgamo and Wilkins, and Leibniz's uncompleted scheme. It treats each of the projects as self contained undertakings, which deserve to be studied and judged in their own right. For this reason, the two artificial languages, as well as Leib niz's work in this area, are described in considerable detail. At the same time, the characteristics of these schemes are linked with their intellectual context, and their multiple interrelations are examined at some length. In this way, the book seeks to combine a systematical with a historical ap proach to the subject, in the hope that both approaches profit from the combination. When I first started the research on which this book is based, I intended to look only briefly into the seventeenth-century schemes, which I assumed represented a typical universalist approach to the study of lan guage, as opposed to a relativistic one. The authors of these schemes thought, or so the assumption was, that almost the only thing required for a truly universal language was the systematic labelling of the items of an apparently readily available, universal catalogue of everything that exists."

This book presents an edition of a previously unpublished notebook used by the seventeenth-century polymath John Wallis to teach language to the 'deaf mute' Alexander Popham. Under the terms of the law Popham would not have been able to inherit his family title and property if he had remained unable to speak. This is one of the most famous cases in the history of deaf education. The notebook, which has recently come to light in the Popham family mansion, provides fascinating insights into the details of the instruction. It is a rare example of a manual tailor-made for the instruction of a known individual and its author is one of the foremost scientists of the period. If it had not been lost the work would have been a key document in the dispute between John Wallis and William Holder, both distinguished fellows of the Royal Society, on whose method had been successful in teaching Popham to speak. The Popham Notebook provides essential evidence towards the resolution of a debate that has been widely discussed ever since. David Cram and Jaap Maat place the work in its personal, social, and scientific contexts. They include a range of additional contemporary texts and provide a clear text with helpful annotations. The edition provides the means for a thorough reassessment of the work's contemporary value. Their introduction also includes a discussion of the theoretical issues underpinning the teaching of language to the deaf.