Describes two new microscopes, the acoustic microscope and a scanning transmission microscope, both of which promise to yield fresh insights, based on revolutionary techniques into cellular biology. (BR)

Describes new apparatus and equipment including balances, spectrophotometers, gas chromatographs, pH meters, calculators and temperature controllers. (GS)

Describes a calibration technique for a small motor which, when driven as a generator, can be used for a speedometer. The generator output can be fed to an oscilloscope to provide a sweep in which the vertical axis is velocity and the horizontal axis, time. (GS)

Identifies a trend in analytical chemistry toward greater use of instruments and a need for an understanding of the basic principles involved in instrumentation. This need can be fulfilled using homebuilt equipment; examples are provided in the areas of electrolytic conductance and electronic coulometry. (GS)

Presents the problems of Third World countries in acquiring science equipment to augment their science curriculum development plans. Outlines an attempt by Kenya Science Teachers College to produce and supply science equipment. Describes the approach to production, quality control, and costing and sales. (GS)

Based on instructional experiences at Charles County Community College, Maryland, this report examines the pedagogical advantage of teaching atomic absorption (AA) spectroscopy with an AA spectrophotometer that is equipped with a microprocessor and video output mechanism. The report first discusses the growing importance of AA spectroscopy in…