This safe and efficient procedure for the synthesis of N-substituted amides and hydrazides is a modification of the Schotten-Bausmann procedure in which the amine or hydrazide is replaced by the corresponding hydrochloride salt, and the use of alkali is eliminated. (Author/BB)

Human visual recognition on the basis of shape but regardless of size was investigated by reaction time methods. Results suggested two processes of size scaling: mental-image transformation and perceptual-scale transformation. Image transformation accounted for matching performance based on visual short-term memory, whereas scale transformation…

In this review of Gamberg's book, the differences in educational philosophy between China and Canada are brought out, emphasizing the ways in which inculcation of competitiveness and individualism in Canada promotes capitalism while inculcation of cooperation in China promotes a different set of values. (Author/MC)

Describes a laboratory procedure to obtain nuclear magnetic resonance (NMR) values for common organic and inorganic groups. (CP)

Includes eleven short notes, comments and responses to comments on a variety of topics such as uncertainty in a least-squares fit, display of diffraction patterns, the dark night sky paradox, error in the dynamics of deformable bodies and relative velocities and the runner. (GA)

Examines the effect of stressful and nonstressful experimental situations upon the processing capacity of each cerebral hemisphere, through observing the differential performance tasks presented to right and left visual half-fields (VHFs). Also examines attentional bias and lateral eye movements. (Author/RK)

Recent laboratory work on the recall of pictures has produced a pattern suggesting that memory for certain classes of stimuli may be hypermnesiac rather than amnesiac (Ebbinghaus, 1885/1964), increasing over time and recall attempts. This research tries to determine the magnitude of memory growth over significant time intervals, e.g., a week…

In an attempt to assess the validity of the distinction between episodic and semantic memory, this research examined the influence of two variables on sentence verification (presumably a semantic memory task) and sentence recognition (presumably an episodic memory task). ( Editor)

A perspective, based on an elaboration of Underwood's (1969) attributes model of memory, is advanced which proposes that for all types of information both detailed and thematic attributes are stored. Two experiments using prose passages as stimulus materials test this proposal. (Editor/RK)

Examines the phenomenon of water drops that float on water at room temperature. Describes experiments that have been done to study this phenomenon. (MA)

Discusses the origin and existence of sediment layers in the Atlantic Ocean. (CP)

Describes the general thrust of deep-sea microbiology research. Discusses the existence of deep-sea food chains. (CP)

Reports on scientific research with rats which has found that electrical stimulation in areas of the brain can trigger behavioral effects similar to those produced by narcotic drugs. (CP)

Describes an experiment to measure the relative rate of hydrolysis of the 2-x-2 methylpropanes, where x is bromo, chloro or iodo. The results are plotted on a graph from which the relative rate of hydrolysis can be deduced. (Author/GA)

Two physics experiments are described, One, involving a laboratory cart accelerated along a level surface, examines the concept of inertial mass in translation and the other, using a solid cylinder, measures the moment of inertia of a wheel. Equations and illustrations are included. (MA)