Illusions, by James Sully

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Title: Illusions A Psychological Study

Author: James Sully

Release Date: February 21, 2006 [EBook #17815]

Language: English

Character set encoding: ISO-8859-1

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~ILLUSIONS~

A PSYCHOLOGICAL STUDY

BY JAMES SULLY AUTHOR OF "SENSATION AND INTUITION," "PESSIMISM," ETC.

THIRD EDITION

LONDON KEGAN PAUL, TRENCH & CO., 1, PATERNOSTER SQUARE 1887

(The rights of translation and of reproduction are reserved)

~THE INTERNATIONAL SCIENTIFIC SERIES.~

VOL. XXXIV.

PREFACE.

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 cl

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