Download or read book History of Ophthalmology written by Harold E. Henkes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the eyeball is indented in total darkness, within less than 200 mil liseconds an oval or quarter-moon shaped spot of light is perceived in the part of the visual field corresponding to the indented region of the retina. In the seconds following, this phosphene extends across the whole visual field and alters in structure during further eyeball indentation. It is then seen as irregular large bright spots of light, finely structured moving light grains ('light nebula') and stationary bright stars. Regular geometrical patterns appear only when both eyes are indented simultaneously [1]. When the eyeball deformation is released, part of the retina again lights up for another one or two seconds and curved light lines are seen following the course of the larger retinal vessels (Fig. 1). In the following we will review the history of this phenomenon, which played an important role during the first 2200 years of vision theories and in the development of models to explain normal vision. 2. Pre-Socratic philosophers, Plato and Aristotle Alcmaeon of Croton (6-5th century B. C. ), who was a member of the Pythagoraean sect and one of the founders of Greek medicine, was the first to describe mechanical deformation of the eyeball leading to light sensa tions. According to Aristotle's pupil Theophrast of Eresos, Alcmaeon report ed that 'the eye obviously has fire within,for when the eye is struckfireflashes out' [2, p. 88].
Download or read book The Cambridge History of Medicine written by Roy Porter and published by Cambridge University Press. This book was released on 2006-06-05 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Against the backdrop of unprecedented concern for the future of health care, 'The Cambridge History of Medicine' surveys the rise of medicine in the West from classical times to the present. Covering both the social and scientific history of medicine, this volume traces the chronology of key developments and events.
Download or read book History of the Swedes of Illinois written by Ernst Wilhelm Olson and published by . This book was released on 1908 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minerals from Earth and Sky written by and published by . This book was released on 1929 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoirs of a Bengal Civilian written by John Beames and published by Eland Publishing. This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrant and original memoirs of a civil servant in India from 1858 to 1893, telling of rapacious planters, improvised fifteen-gun salutes, lofty Rajas and dissolute Englishmen. Vivid and candid tales from a huge bureaucracy, in rich descriptive prose
Download or read book Anatomy of the Cat written by Jacob Reighard and published by Good Press. This book was released on 2019-12-12 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the title says it, this book is truly a comprehensive guide into understanding the biological anatomy of domestic cats. The book is divided into five parts, discussing the following: the skeleton, the viscera, the nervous system, the muscles, as well as sense organs and integument.
Download or read book An Introduction to the History of Medicine written by Fielding Hudson Garrison and published by Franklin Classics Trade Press. This book was released on 2018-10-30 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Jim s Journal written by James Butler and published by . This book was released on 1996 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1876, Jim Butler - Quaker, teetotaller and, later, newspaper editor - arrived to convalesce in the Eastern Cape. During his two-and-a-half-year stay, he kept a journal, recording daily life, politics, natural history and social encounters. This edition has been re-edited and annotated.
Download or read book Source Problems in English History written by Wallace Notestein and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an essential resource for anyone studying English history. It provides a collection of primary source documents and problems to promote critical thinking and analysis. 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.
Download or read book The Meteoritic Hypothesis written by Sir Norman Lockyer and published by . This book was released on 1890 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pocket Companion to the British and London Pharmacop ias of 1851 1864 1867 Fourth Edition Revised Etc written by George BARBER (Pharmaceutical Chemist.) and published by . This book was released on 1867 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book About Hebrew Manuscripts written by Elkan Nathan Adler and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delve into the fascinating world of ancient Jewish texts with this groundbreaking study from renowned scholar Elkan Nathan Adler. Drawing on his extensive knowledge of Hebrew language and culture, Adler offers insightful commentary on the significance and history of these rare and valuable documents. 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.
Download or read book The Cleveland School Survey written by Leonard Porter Ayres and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This survey of the Cleveland public school system provides fascinating insights into education in the early 20th century. The survey covers everything from teacher training to curriculum development, making it an essential resource for scholars of education history. The Cleveland School Survey is a must-read for anyone interested in the history of education or the development of American cities. 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.
Download or read book Calcutta International Exhibition 1883 84 written by and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a historical account of the Calcutta International Exhibition 1883-84. It presents a vivid description of the event, its participants, exhibits as well as its impact on Indian society. It is an interesting read for anyone interested in the history of colonial India. 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.
Download or read book Sketch of the Life of Richard Dobbs Spaight of North Carolina written by John Hill Wheeler and published by . This book was released on 1880 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Treatise on Madness written by William Battie and published by Hardpress Publishing. This book was released on 2019-03-28 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy!
Download or read book The Student s Pocket Companion to the British and London Pharmacopoeias of 1851 1867 written by George Barber and published by . This book was released on 1872 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt:
