Excerpt from Film, Surface, and Bulky Colors and Their Intermediates We used both black and colored fixation points. They were cut with a beveled circular punch and were slightly more than 1 cm. In diam. The usual exposure time in this series was 5 sec. Longer and shorter times were tried without affecting the results, except when prolonged fixation was accompanied by staring. The following instruction was given. After the usual 'ready, Now' signal, a colored disc and a differently colored fixation spot will be exposed. Be sure to maintain fixation at the fixation spot. Report on the character of the spot and of the colored field in terms of localization, dimensionality, texture, and objectivity. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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This is Volume VI of twenty-one in a collection of Cognitive Psychology. The first edition of this book appeared in 1911, and the second in 1930. It offers a study of the modes of appearance and measures of perception of colour and the phenomenology of illumination, as well as film colours like grey, transparent and translucent colours, light and space determined colours, contrast and theories of colour constancy.

Vol. 49, no. 4, pt. 2 (July 1952) is the association's Publication manual.