The basic physical principles of dye lasers are discussed and used to analyze the design and operation of tunable dye lasers pumped by pulsed nitrogen lasers. Details of the design and construction of these dye lasers are presented. Some simple demonstration experiments are described. (BB)

Indicates some of the information that may be obtained from a binary solid-liquid phase equilibria experiment and a method to write a computer program that will plot an ideal phase diagram to which the experimental results may be compared. (Author/CP)

Describes the laboratory procedure suitable for an introductory organic chemistry procedure. (CP)

Discusses an experiment involving a linear chain of falling dominoes. The time for a chain of N equally spaced dominoes to fall is measured and a plot is made between the time and N. The experimental data are compared with the predictions of theory. (Author/GA)

Describes an experiment to verify the Compton collision formula and the angular dependance of the Klein-Nishina formula. Equipment used is a 1-mCi(137)Cs source, 2x2 in. NaI detector and a multichannel analyzer. Suitable for honor undergraduates. (Author/GA)

Presents an experiment for a physical chemistry course designed expecially for students majoring in the life sciences. (SL)

Describes an apparatus and experimental procedure for quantitatively evaluating the activation energy associated with annealing color centers in glass. (MLH)

Research is reviewed which demonstrates the existence of reverse discrimination (majority group members treating other majority group members worse than they treat members of a minority group) and tokenism (a decrease in subsequent compliance to large interracial requests) following prior compliance to smaller requests. Within subject evidence…

The types of notes provided for postgraduate demonstrators to help them teach effectively in the laboratory are described. Notes have been written at the University of London for four laboratories, in some cases permitting permanent academic staff to be replaced almost entirely by the demonstrators. (LBH)

An experimental procedure is described for studying oxygen uptake by a transition metal. This procedure is designed for use with undergraduates and may be used in organic or biochemistry laboratories. Diagrams of the apparatus are included. (MR)

The experiment described here involves simultaneous monitoring of pH and NMR chemical shifts during an aqueous titration of alpha- and beta-alanine. This experiment is designed for use in an undergraduate biochemistry course. (MR)

Two experiments are described and appropriate discussion is given to illustrate the use of substoichiometry and saturation analysis techniques with undergraduates. The first experiment is the determination of silver content in photographic film. The second is the estimation of a hormone concentration using saturation analysis and a commercially…

Describes a simple procedure for making all-round holograms of small objects. (SL)

Describes a chemical experiment which illustrates the Beckman rearrangement and ring opening reactions. (SL)

Describes an open-ended chemistry laboratory project for organic chemistry laboratories. (SL)