Visual Illusions by Matthew Luckiesh is about vision, physics, and the ability to see. You will enjoy reading about a variety of causes, characteristics, and applications of visual illusions. Contents: "The Eye, Vision, Some types of geometrical illusions, Equivocal figures, The influence of angles..."

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

"In fifteen interesting and also remarkably well-illustrated chapters Mr. Luckiesh manages to get together an amount and variety of information regarding opt1cal illusions which is altogether astonishing to one who has never studied them.. .Altogether the hook is a very interesting and admirable exposition of a most curious suhject and will add materially to its author's high reputation as a specialist in the lighting art." --Electrical World

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.