Robert Fletcher

Binocular vision, i.e. where both eyes are used together, is a fundamental component of human sight. It also aids hand-eye co-ordination, and the perception of the self within the environment. Clinical anomalies pose a wide range of problems to the sufferer, but normal binocular operation must first be understood before the eye specialist can assess and treat dysfunctions. This is a major new textbook for students of optometry, orthoptics and ophthalmology, and also of psychology. Chapters span such key topics as binocular summation, fusion, the normal horopter, anatomy of the extra-ocular muscles, oculomotor control, binocular integration and depth perception. Fully illustrated throughout, the book includes self-assessment exercises at the end of each chapter, and sample experiments in binocular vision functioning.

"Not one great country can be named, from the Polar regions in the north to New Zealand in the south, in which the aborigines do not tattoo themselves." -Charles Darwin, The Descent of Man Tattooing Among Civilized People (1882) by Robert Fletcher is a presentation the author made to the Anthropological Society of Washington. Given the purpose of the organization, Fletcher's paper focused on the anthropological significance of tattoos: in which cultures their use was prominent, why they were used, and how they differed from one culture to another.

"Their (cupstones) occurrence in different countries make distribution a basis for drawing inferences bearing on the important question of the migration of man in long-past ages."-Charles Rau, Preface, Observations on Cup-shaped Lapidarian Sculptures in the Old World and in America (1881)Observations on Cup-Shaped and Other Lapidarian Sculptures in the Old World and in America: On Prehistoric Trephining and Cranial Amulets-A Study of the Manuscript Troano (1881) is the fifth volume of a nine-part series entitled Contributions to North American Ethnology (all available from Cosimo Classics). This volume is organized into three parts: Part I: Observations on Cup-Shaped and Other Lapidarian Sculptures by Charles Rau; Part II: On Prehistoric Trephining and Cranial Amulets by Robert Fletcher; and Part III: A Study of the Manuscript Troano by Cyrus Thomas. It offers a critical contribution to the history of Native Americans and is a must-read for anthropologists and students of the history of mankind.