'Johnson's California, with Utah, Nevada, Colorado, New Mexico, and Arizona, published by Johnson and Ward.' 'Entered according to Act of Congress in the Year 1864 by A.J. Johnson in the Clerks Office of the District Court of the United States for the southern district of New York.' Atlas page numbers in upper margin: 66-67. This is probably plate 67 from Johnson's New Illustrated Family Atlas, published in New York by Johnson & Ward in 1864. Shows natural features, locations of Indian tribes, proposed railroad routes, routes of explorers, trails, county boundaries and populated places ; "." ; Relief shown by hachures ; Prime meridians: Greenwich and Washington ; In top margin: 66-67 ; Hand colored ; On verso: Historical and statistical view of Mexico and central America (p. 79) and Historical and statistical view of the United States, 1860 (p. 78) Scale [ca. 1:3,484,800]. 1 in. to ca. 55 miles (W 124°--W 102°/N 42°--N 32°)

The exterior of Hughes Research Laboratories where rock bits were test-drilled in Culver City, California in the 1940s. Transcribed from note taped to back of photo: "Rock bits are test-drilled in the laboratory under conditions that duplicate, as far as is possible in the laboratory, those encountered in actual drilling. As a result, rotational speeds, loads, and fluid volume are closely controlled. The rig operator occupies a splash-proof booth above the 'cellar floor.' The instruments on his control panel provide for application and measurement of variable axial loading on the drilling bit up to 100,000 lbs., variable rotational speeds up to 400 rpm, measurement of bit penetration over a total vertical travel of 5 feet at rates up to 180 ft. per hour, and torque. On the panel, also, are several controls for the operation of mud pump and other accessory equipment."