~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.