Excerpt from A Discussion on the Making of Reflecting Surfaces Held on 26th November, 1920, at the Imperial College of Science and Technology, South Kensington, S. W. 7 The bibliography of the subject may seem disappointingly small when ultimately submitted to you. As a matter of fact, I have discovered that the literature on the preparation of metallic films on glass is enormous if one includes every available reference, but that it is comparatively small if one eliminates that endless mass of repetition, abstracts, merest notices which are to be found in a dozen contemporaries, and the recorded successes and failures of amateurs. I have been forced to eliminate hundreds of empty references, but I have neither recorded nor eliminated anything that I have not been able to verify at the source. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.