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by James Sully

The present volume takes a wide survey of the field of error, embracing in its view not only the illusions of sense dealt with in treatises on physiological optics, etc., but also other errors familiarly known as illusions, and resembling the former in their structure and mode of origin. I have throughout endeavoured to keep to a strictly scientific treatment, that is to say, the description and classification of acknowledged errors, and the explanation of these by a reference to their psychical and physical conditions. At the same time, I was not able, at the close of my exposition, to avoid pointing out how the psychology leads on to the philosophy of the subject.


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Author of the Day

Denitta Ward
Wen Denitta Ward isn't supporting world-changing research in her day job, she enjoys researching history and writing fascinating novels set in the past. As our Author of the Day, Ward introduces us to Prohibition Cocktails - 21 secrets and recipes from the Roaring Twenties. She explains in which way this is a companion book to Somewhere Still, talks about how her mother inspired this book and reveals a cocktail secret or two.
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