Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The kind reception these lectures on hysteria have met with encourages us to publish a second edition of this work. It does not seem to us very useful to modify it profoundly, for the interest of a scientific work resides almost always in the date at which it was drawn up, and one should not confusedly mix the ideas of one period with those of another. I only wish to Show in a short preface that certain notions set forth in' these lectures of 1906 have spread very much since that date and have played a great part in the interpretation of hysteria. I should also like to show in what direction I have been led myself, in my other works published since that time, to develop certain of my preceding interpretations.

The kind reception these lectures on hysteria have met with encourages us to publish a second edition of this work. It does not seem to us very useful to modify it profoundly, for the interest of a scientific work resides almost always in the date at which it was drawn up, and one should not confusedly mix the ideas of one period with those of another. I only wish to Show in a short preface that certain notions set forth in' these lectures of 1906 have spread very much since that date and have played a great part in the interpretation of hysteria. I should also like to show in what direction I have been led myself, in my other works published since that time, to develop certain of my preceding interpretations.