Report concerning "[a]n airborne gamma-radiation survey of Connecticut, Rhode Island, and parts of New York, Massachusetts, New Hampshire, and Vermont" (p. 5) made between 1958 and 1960 that indicated that a broad range of radioactivity exists in those areas depending on the type of bedrock. Correlations are drawn between this radioactivity and the geology of the region.

Map with graded color shading to show levels of naturally-occurring gamma aeroradioactivity within the New England region of the U.S. Details about the survey and map creation are printed at right. Scale 1:250,000.

A letter written to T. N. Carswell from Claude Lloyd, Ashland, New Hampshire, dated August 2, 1960. Lloyd advises that two summers from now he will be retired and that having lived in an Academy house for years he will be required to find another place. He describes the setting of an old farm house with three acres that he bought 28 years ago and has been working on during summers but now must complete for year-round habitation. He conveys his love for Texas and advises that his visit three years ago proved that there is no gap in his life. He describes his years in Massachusettes; "Living and sometimes competing with these Mayflower-Harvard names is sometimes a bit galling, more often amusing. Generally, I find it more gratifying to shock than to please them". He expresses his appreciation to Carswell for the call, letter and kind considerations for some fifty years making note of their lasting friendship even after years of separation.