Presents water analysis literature for 1978. This review is concerned with organics, and it covers: (1) detergents and surfactants; (2) aliphatic and aromatic hydrocarbons; (3) pesticides and chlorinated hydrocarbons; and (4) naturally occurring organics. A list of 208 references is also presented. (HM)

This purpose of this article is to explain, in simple terms, the difficulty students have in a British sixthform course in proceeding from X-ray photograph to molecular structure. (HM)

Describes a simple method for establishing the end point in a volumetric analysis that will save time, and reduce both the titration error and the required amount of reagents. (GA)

For teachers in search of an easily obtainable, readily dissectable, and unique living specimen to arouse the interest of their students and illustrate important biological principles, lichens are the perfect selection. Background information and experiments on lichen anatomy, physiology, and chemistry are given. An appendix gives culture media.…

A new freshman chemical engineering course at the University of Texas emphasizes the development of writing skills. (BB)

An approach is described for the incorporation of technical writing instruction into a chemistry course for college seniors. The approach uses a guide to technical writing and one or two lectures. (BB)

Describes how the art of Maurits Escher can be used in physical science and general chemistry classes. A film depicting Escher at work in creating a woodcut and a set of slides are shown to college students. The students are encouraged to observe and record what they see. (HM)

Describes some laboratory apparatus, chemistry experiments and demonstrations, such as a Kofler block melting point apparatus, chromatographic investigation of the phosphoric acid, x-ray diffraction, the fountain experiment, endothermic sherbet, the measurement of viscosity, ionization energies and electronic configurations. (GA)

Presents a computer method for teaching chemical equilibrium concepts using material balance conditions and the minimization of the free energy. Method for the calculation of chemical equilibrium, the computer program used to solve equilibrium problems and applications of the method are also included. (HM)

Presents an undergraduate physical chemistry laboratory experiment describing the measurement of the proton magnetic resonance spectra. (HM)

This experiment uses a nine-chambered plexiglas unit to facilitate rapid construction of galvanic cells and measurement of cell voltage. Using this procedure, a pair of students can construct and obtain the cell voltages of two precipitation cells, three concentration cells, and six redox cells in 30-40 minutes. (BB)

The observation of soap bubbles in a beaker of carbon dioxide gas helps students to feel the pleasure that comes from understanding nature, from applying that understanding to real problems, and from making unexpected discoveries that yield to analysis. (Author/BB)

Describes the preparation of suitable solid electrolytes and cells which may form the basis of a laboratory teaching program designed to illustrate a variety of electrochemical ideas. ( Author/CP)

Reports on a computer batch program that will not only perform routine grading using several grading algorithms, but will also calculate various statistical measures by which the class performance can be evaluated and cumulative data collected. ( Author/CP)

Suggestions on the preparation of various kinds of glass and a demonstration of burning magnesium and dry ice are presented. (CP)