Excerpt from Archives of Radiology and Electrotherapy (Archives of the Roentgen Ray), Vol. 20: June, 1915, to May, 1916 W'ith this expression of our hopes and aims regarding the future of the archives and the part which it should play, we trust that we shall have the full and active cc-operation of our readers. We cordially invite their assist ance, particularly in the direction of sending to us the results of original work in any of the various branches of our subject. The increased cost of production of the journal necessitates that its price be modified. It is, however, proposed that to all of our readers who are members of some recognised medical or scientific society the price should remain as before, but that in other cases it should be increased to one guinea. 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.

Excerpt from Archives of Radiology and Electrotherapy, Vol. 21: June, 1916, to May, 1917 Radiodiagnosis of the accessory nasal sinuses, 1 of appendicitis, 49, 345 and treatment of enlarged lymphatic glands, 27 See also list of Notes and Abstracts. 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.

Excerpt from Archives of Radiology and Electrotherapy, Vol. 22: June, 1917 To illuminating engineers the processes involved in luminescence have therefore a direct interest, apart from the wider aspects of these phenomena. One of the most familiar examples of such effects is the firefly, the luminous efficiency of which is believed to be far higher than any existing illuminant, and other insects and marine forms of life have similar properties. The production of light appears to be due to chemical action. The glow of phosphorus (from which the term phosphorescent is derived) in the dark is due to slow oxidation, and luminosity may also be produced by the oxidation of pyrogallic acid and other organic materials. Such effects are termed chemi luminescence. 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.