Describes a method in which metals can be identified by the direction of the e.m.f. generated when the junctions in a circuit containing two dissimiliar metals are at different temperatures. (MLH)

Describes an experiment that utilizes a potentiometric, redox titration in N, N-dimethylformamide. (MLH)

Describes a simple experiment using an inexpensive RCA 931A photomultiplier, in which a measurement of the secondary electron emission coefficient is measured at the last dynode. (MLH)

Describes the chemistry of dyeing, including acid, basic, vat, and disperse dyes. Includes laboratory experiments. (MLH)

Describes eleven laboratory experiments, including the catalytic effect of copper in zinc-acid reaction; a study of the rate of polymerization of some aldehydes; and a demonstration automatic potentiometric titrator. (MLH)

Discusses a laboratory experiment in which uranium is isolated by the reduction of uranyl acetate. (MLH)

Describes the synthesis of a sweetening compound that requires seven laboratory periods of three-hours duration. (MLH)

Describes an entry into the synthesis of the cyclopropenone series that is designed for the undergraduate organic chemistry laboratory. (MLH)

This study was an experimental investigation of the effects on cognitive learning of training students to use behavioral objectives. (Editor)

College students were randomly assigned to seven note-taking and review conditions in order to determine the relative importance of the functions of encoding and either an externally provided or a personally produced memory device. (Editor)

Describes a laboratory procedure for separating a mixture of plastics representative of scrap plastic using various solvents and solubility techniques. (MLH)

Proposes that a levels-of-processing analysis of encoding implies that (a) other things being equal, (e.g., task requirements), deeper information should be equally derivable from pictures and words; but (b) when picture-word differences do occur, they are encoding phenomena which result because task requirements generally favor more discriminable…

Deals with memory for lists of items. The literature is briefly reviewed, and the main difficulties for traditional explanations of serial order effects are noted. (RK)

When subjects learned paired associates that, on the study trials, consisted of a stimulus (cue) and its correct (target) response plus two other (distractor) responses from within the list, the presence of the distractor items interfered with learning, especially when overtly pronounced as opposed to silently studied. (Editor)

Three experiments were conducted in an attempt to develop an account of information loss based on the relationships among events occurring at input, during a retention interval, and at output. (Editor)