The three-volume work Perceiving in Depth is a sequel to Binocular Vision and Stereopsis and to Seeing in Depth, both by Ian P. Howard and Brian J. Rogers. This work is much broader in scope than the previous books and includes mechanisms of depth perception by all senses, including aural, electrosensory organs, and the somatosensory system. Volume 1 reviews sensory coding, psychophysical and analytic procedures, and basic visual mechanisms. Volume 2 reviews stereoscopic vision. Volume 3 reviews all mechanisms of depth perception other than stereoscopic vision. The three volumes are extensively illustrated and referenced and provide the most detailed review of all aspects of perceiving the three-dimensional world. Volume 1 starts with a review of the history of visual science from the ancient Greeks to the early 20th century with special attention devoted to the discovery of the principles of perspective and stereoscopic vision. The first chapter also contains an account of early visual display systems, such as panoramas and peepshows, and the development of stereoscopes and stereophotography. A chapter on the psychophysical and analytic procedures used in investigations of depth perception is followed by a chapter on sensory coding and the geometry of visual space. An account of the structure and physiology of the primate visual system proceeds from the eye through the LGN to the visual cortex and higher visual centers. This is followed by a review of the evolution of visual systems and of the development of the mammalian visual system in the embryonic and post-natal periods, with an emphasis on experience-dependent neural plasticity. An account of the development of perceptual functions, especially depth perception, is followed by a review of the effects of early visual deprivation during the critical period of neural plasticity on amblyopia and other defects in depth perception. Volume 1 ends with accounts of the accommodation mechanism of the human eye and vergence eye movements.

"I love you." "What can I get you?" "Let's take a walk." Wanting to say simple things like these but not being able to is frustrating and disheartening—but learning how to communicate can be easy and fun! This book is a basic guide to the alphabet, vocabulary, and techniques it takes to connect using American Sign Language. Whether signing out of necessity or learning for the sake of growing, you will enjoy this practical primer. After reading this book, you will be able to use American Sign Language in a social, educational, or professional setting. Whether the goal is to communicate with hearing-impaired grandparent, a child with special needs in school, or an infant, people learn sign language for many different reasons. Easy to read and reference—and complete with images and examples of common signs—this basic guide allows you to make a meaningful connection that's otherwise impossible.

Beginning in 1956 each vol. includes as a regular number the Blue book of southern progress and the Southern industrial directory, formerly issued separately.