Uses an example of literature error to illustrate several principles often difficult to present to chemistry students. Indicates how the significance of previously reported experimental results is changed when previously reported assumptions are replaced by an alternative set of assumptions leading to a self-consistent interpretation of the…

Describes a group experiment demonstrating the use of conductivity measurements in the application of kinetic methods of nucleophilic aliphatic substitution. (CS)

Describes an experiment in which a subject spent more than 230 hours of practice in a laboratory and was able to increase his memory span from 7 to 79 digits. The results suggest that practice with an appropriate mnemonic system can increase memory performance. (Author/SA)

Some examples of high technology windmills. (MLF)

Describes an experiment conducted by two eighth grade home economics students in a gifted and talented program. A student-developed description of the experiment is provided. (LRA)

A method of estimating the solubilities of drugs in water is reported that is based on a principle applied in quantitative structure-activity relationships. This procedure involves correlation of partition coefficient values using the octanol/water system and aqueous solubility. (Author/MLW)

The study and construction of sundials is a useful teaching aid at several levels of instruction, since it involves understanding the shape, divisions, and major motions of the earth. (Author/RLV)

Reviews studies of regulation of nasal airway resistance (Rn). Describes methods of calculating Rn by measuring pressure-flow relationship. Data are presented on improved methods for measuring Rn and effects for expiratory and inspiratory Rn after topical application of phenylephrine nasal decongestant spray. (Author/SA)

Presents a reliable method for the sterilization of ciliates using common lab equipment and skills. A modified Glaser and Coria technique is used. (MA)

Wood pyrolysis is a process that burns wood without air, producing gas and oil that are then burned for heat. Now being tested at Maryville College, Tennessee, the process is expected to cut fuel costs, solve a waste disposal problem, and produce charcoal for sale. (Author/MLF)

A discussion of the aerodynamics of a boomerang as it relates to that of a golf ball. (BB)

Examines two conceptualizations of guilt and tests the hypothesis that high guilt women would experience more affective guilt following their exposure to sexual stimuli, while both low and high guilt women would experience more anxiety in a nonanonymous condition, e.g., in the presence of an experimenter. (Author/RK)

In three experiments the location of pigeons was monitored during 20-second illuminations of a right or left key presented in various temporal relationships with food delivery. In general, subjects approached a signal positively correlated with food and withdrew from a signal negatively correlated with food. (Editor)

Subjects responded to pairs of test items from learned linear orderings (e.g., Tom is taller than Dick; Dick is taller than Sam, etc.). Results are compared with previous studies of ordered linguistic, perceptual, and numerical information. (Editor/RK)

Criticism of the study relating effects of therapist warmth to desensitization include: the use of surrogate, student subjects; nonstandard desensitization procedures; and no control group. Morris and Suckerman respond that the first two criticisms rely on selective reading of the literature and the third is irrelevant. (NG)