Describes construction of a model that can demonstrate the activities of the human lungs. Among these are the effects of occluding the trachea and respiratory opening, the action of diaphragmatic and negative-pressure breathing and pressure changes. (SA)

Describes the design of a simple yet flexible microprocessor and how to construct it using a breadboard. (DC)

Examines the nature of laser light. Topics include: (1) production and characteristics of laser light; (2) nine types of lasers; (3) five laser techniques including holography; (4) laser spectroscopy; and (5) laser fusion and other applications. (SK)

Describes (1) a rippler assembly which makes use of a loud speaker and a stroboscopic light source designed for this application; and (2) an experiment using a force table that has been modified for a capstan experiment. (JN)

Electronic energy levels in noble gas atoms may be determined with a simple teaching apparatus incorporating a resonance potentials tube in which the electron beam intensity is held constant. The resulting spectra are little inferior to those obtained by more elaborate electron-impact methods and complement optical emission spectra. (Author/SK)

Discusses debt financing as a way to help universities alleviate the problems of obsolete scientific equipment and facilities for research. Reviews several forms of tax-exempt financing and takes note of some of the advantages of debt financing. (CS)

Describes an apparatus that offers a very lucid demonstration of Poisson statistics as applied to electrical currents, and the manner in which such statistics account for shot noise when applied to macroscopic currents. The experiment described is intended for undergraduate physics students. (HM)

This article describes the history of the molecular revolution in biology and emphasizes its dependence on the emergence of bacterial genetics, the fusion of genetics and biochemistry, and the development of new techniques for studying macromolecules. (Author/SA)

This is an annotated list of marine field stations suitable for summer study or research in carbonate geology and tropical marine sciences. Thirteen are listed and described in detail. Equipment is discussed and reference is made to research-oriented Caribbean facilities for graduate study or field courses. (Author/SA)

Describes a conference sponsored by the American Association of Petroleum Geologists (AAPG) to provide an opportunity for representatives from industry and academe to discuss the training and employment of geoscientists. (Author/SA)

The making of topographic maps is described as a sequence of the following steps: establishment of control, photogrammetry and field operations, annotation of photographs, stereoplatting, editing, preparation of color-separation plates, and printing. Precise standards are emphasized. (Author/SA)

Describes a transfer device for fruit flies based on the upward movement of fruit flies. Includes instructions for constructing the apparatus. (CS)

Presented is an inspection form developed for use by college students to perform laboratory safety inspections. The form lists and classifies chemicals and is used to locate such physical facilities as: fume hoods, eye-wash fountains, deluge showers, and flammable storage cabinets. (BT)

Describes a simple, inexpensive Faraday balance for studying the effect of a strong magnetic field on selected reaction rates. Aschematic diagram detailing the essential features is included. (BT)

Continued from an earlier paper are more descriptions of microcomputer systems and applications in chemical education. A number of microcomputer systems are compared. Also listed are five recent references which review popular microcomputers. (Author/CS)