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Plate 1. Natural Gamma Aeroradioactivity and Generalized Geologic Maps of Puerto Rico

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

Date: March 1964

Creator: MacKallor, Jules A.

Item Type: Map

Partner: UNT Libraries Government Documents Department

[Roosevelt Tower, at the University of Puerto Rico]

Photograph of Roosevelt Tower, at the University of Puerto Rico. The clocktower sits atop an ornately decorated building that has two Puerto Rican flags flying on its roof. The buildings on either side of the clocktower are topped by tiled roofs and have overhangs over their windows.

Date: unknown

Creator: Parlee, Lorena, 1945-2006

Item Type: Photograph

Partner: UNT Libraries Special Collections

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Plate 1. Natural Gamma Aeroradioactivity and Generalized Geologic Maps of Puerto Rico

[Roosevelt Tower, at the University of Puerto Rico]