Brief descriptions of a number of new items (instruments, kits, collections, booklets) are given. Sources are indicated. (RH)

Descriptions of new equipment and materials are provided. Sources of the items are given. nRWH)

Described are a number of pieces of equipment including a sterilizer, microprojector, x-ray, centrifuge, vacuum pump, and incubator. (PEB)

A discussion of rationale and design of a laboratory for students of social work for which the goal is to describe a training process that may be a beginning of a total program of social work education. (Author)

Describes the use of 35 mm slides consisting of a diagram of photograph and 15 to 60 words of text to augment laboratory instruction. (GS)

Describes an experiment developed to study the velocity components of thermionic electrons, temperature-limited emission, cathode and anode work functions, and the contact difference in potential between cathode and anode. (Author/GS)

Describes the design and use of the dichromate-photometric breath analyzer. The discussion of this instrument provides a vehicle for demonstrating the relevance of chemical principles to everyday life. (GS)

Ping-Pong vacuum cannons, potato guns, and compressed air cannons are popular and dramatic demonstrations for lecture and lab. Students enjoy them for the spectacle, but they can also be used effectively to teach physics. Recently we have used a student-built compressed air cannon as a laboratory activity to investigate impulse, conservation of…

A discussion of rationale and design of a laboratory for students of social work for which the goal is to describe a training process that may be a beginning of a total program of social work education. (Author)

The article describes the development of a comprehensive maintenance program for the school shop. A general maintenance management outline provides direction for planning, execution, and evaluation. (MW)