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This book was written to document the part played by the Massachusetts Institute of Technology, its staff, its former students and its undergraduates. Tales of skill, self-sacrifice and courage displayed by "Tech" men are preserved as an inspiration to their comrades and descendants. Attention is directed to the fact that such an institution as "Technology" is not only a valuable auxillary in developing commerce and industry in time of peace but that in time of national emergency it becomes an indispensable part of the Nation's military organization.

Beginning in 1924, Proceedings are incorporated into the Apr. number.

Video recording has recently become an important phenomenon. Although the majority of American homes have at least one video recording set, not much is known about video recording's past and about its continual effect on affiliated industries. This text documents the history of magnetic recording, stressing its importance in consumer as well as commercial applications from the advent of magnetism through the invention of such new technologies as Digital Audio Tape (DAT), High Definition Television (HDTV), and a multitude of sophisicated Digital Video Cassette Recorders.