Excerpt from Achievement in Radio: Seventy Years of Radio Science, Technology, Standards, and Measurement at the National Bureau of Standards

In a sense, the writing of Achievement in Radio was a matter of putting it all together, yet the material had to be searched for, sifted out, organized, and then written down. Our sources of information are listed in appendix F; the individual items totaling in the thousands photographs, for example). The published writings of the radio work of nbs comprise approximately 3680 papers plus hundreds of papers that are not listed in the open literature.

We have taken the stance in our subject treatments to stress firsts or beginnings in the matter of looking back, back, back to the origin of a theory, the original concept of an instrument or a technique, or an event that triggered a series of events or a project. Whole books have been written on firsts Kane: Famous First Facts). We could class a sizeable portion of our writings to be in the area of incunabula.

As much as possible, the occurrences of events and actions are given to the date of the month as Well as the year. However, not all records were dated in this detail; also, some events extend over a period of time and cannot be pin-pointed to a specific day. Duration of projects is usually given by calendar years, but sometimes by fiscal years because of annual reports having been prepared to cover periods extending from July 1 through June 30.

Completion times for various chapters have spanned a period of several years. Thus, programs that have extended to recent times (and to the present) have had different cutoff times of their writing. For example, chapter VIII was terminated-at the close of 1976, whereas chapter XV was terminated in 1978.

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