Describes a method for direct calculation of energy levels by using elementary techniques. Describes the limitations of the approach but also claims that with a minimum amount of labor a student can get greater understanding of atomic physics problems. (PS)

A survey to obtain employee knowledge and attitudes about safety directly after a job safety program. (CP)

Practical chemical problems in the cement industry are being solved by such techniques as infrared spectroscopy, gas chromatography-mass spectrometry, X-ray diffraction, atomic absorption and arc spectroscopy, thermally evolved gas analysis, Mossbauer spectroscopy, transmission and scanning electron microscopy. (CP)

An antiobsolescence management education program by TRW, Incorporated, includes preliminary discussion, reading, and consultation; offsite laboratory training; work unit application; a management skills workshop; and individual developmental followup. Program flow chart. (LY)

Explains the mechanisims of mechanical and electronic counters. Lists specifications required for ordering. (EB)