The President of the United States of America takes pleasure in presenting the Navy Distinguished Service Medal to Rear Admiral Charles Wilson Dyson, United States Navy, for exceptionally meritorious service to the Government in a duty of great responsibility in charge of the Design Division of the Bureau of Engineering and particularly for the design of the propellers of the aircraft carriers U.S.S. SARATOGA and U.S.S. LEXINGTON, and of many other naval vessels which have been made by him personally and which have proven very successful on trials. Rear Admiral Dyson, as a result of his ability, study and application, is recognized as one of the foremost authorities in the world in the field of propeller design. During his long years of service in the Navy he has given it, without stint, the benefit of his knowledge and experience and the success of the machinery installations of many of our vessels is due to his thought and effort.