Geometrical Psychology or The Science of Representation is a book written by Louisa S. Cook in 1887. The book provides an abstract of the theories and diagrams of B. W. Betts, who was a psychologist and mathematician. The book explores the relationship between geometry and psychology, and how the two fields can be used to better understand the human mind. The book covers topics such as the nature of perception, the role of imagination, and the relationship between mind and body. The author presents Betts' theories and diagrams in a clear and concise manner, making the book accessible to both psychologists and mathematicians. Overall, Geometrical Psychology or The Science of Representation is a fascinating exploration of the intersection between mathematics and psychology, and provides a unique perspective on the workings of the human mind.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.