The cumulus cloud events of the Florida peninsula that were observed during a 19-day period of photoreconnaissance in August and September 1957 are described and illustrated. The associated meteorological and rainfall events are also described and the intercorrelations among the various observations are pointed out. The study findings revealed that the principal factors governing the cloud and rainfall situations of the different days were (1) the low-level advection of water vapor into the peninsula from the oceanic surroundings, (2) the wind transport, into the heated peninsula from the oceans during the daytime, of pre -existing cumulus populations containing appreciable liquid water, (3) the low-level convergence, and associated updraft motion, engendered by the synoptic situation and the peninsula sea breezes, and (4) the precipitable water content of the lower Florida air mass. (Author)

From Introduction: "The investigation of solar distillation described in this Summary Report is part of the wide-ranging program of the Office of Saline Water to develop economical processes for the conversion of saline water to fresh water." From Summary: " Since the submission of the Summary Report which covered the first two years' progress, several new stills have been constructed, including four basin-type stills for the evaluation of basin liners and other materials."

From Abstract: "The data are presented as aeroradioactivity units or areas with similar gamma radiation counting rates at 500 ft., at two map scales: (1) generalized at about 1: 1,000,000 and (2) detailed at 1:250,000. The maximum aeroradioactivity in almost all the area was less than 400 counts/sec. Aerial measurements of ground radioactivity in the ARMS-II Orlando area were consistent with what was expected, considering the geology of the area."

Maps of three segments in the Orlando area surveyed as part of a radiological survey, outlining "Radioactivity levels in hundreds of counts per second normalized to 500 ft above ground." Scale 1:250,000.

From foreword: The results of an engineering study directed toward the evaluation and selection of a nuclear reactor system designed to produce electricity and furnish steam to a water desalination plant in the Florida Keys are given in this report.

From Introduction: "This report describes the progress of the study and field evaluation of solar sea-water stills during the first 2 years of a research program being conducted for the Office of Saline Water, United States Department of the Interior, by Battelle Memorial Institute. The period covered by the report extends from January 20, 1958, to January 31, 1960."