Excerpt from An Essay on Vision, Briefly Explaining the Fabric of the Eye, and the Nature of Vision: Intended for the Service of Those Whose Eyes Are Weak or ImpairedHE following Essay is so short, that there is no occasion for a long preface to introduce it to the readers' notice. One of the principal ends of it is to do away a general prejudice in favour of spectacles.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

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