Abstract: "ground-water test well A was drilled to a depth of 1,870 feet with rotary and cable-tool equipment. Only alluvial materials were penetrated. These were saturated below 1,605 feet. Pumping and bailing tests indicate that the minimum transmissibility of the alluvium is about 800 gallons per day per foot. The specific capacity was 1.9 gallons per minute per foot of drawdown after 1 hours of pumping at rates of both 41 and 60 gallons per minute. A suite of geophysical logs, a summary of contract costs, and a detailed description of drilling equipment and casing record are presented."

From contributions of astrogeology: The principal goal of research in astrogeology is the solution of several cardinal problems of geology...The present volume is the first of a series of professional papers that will describe major results of research in astrogeology.