The results of the experiments reported here are in support of the hypothesis that visual and aural presentation lead to different forms of storage and/or retrieval. They are not consistent with models of human memory in which short-term storage is restricted exclusively to an auditory-verbal-linguistic process. (Author)

The role of phosphates in environmental issues and in detergents is discussed. Experimental procedures are described for colorimetric determination of orthophosphates. (TS)

Describes and compares procedures and results of determination of colorimetric, potentiometric, and amperometric endpoints of an oxidative titration of arsenite by iodine. (TS)

Results of research presented at the meeting of the Eastern Psychological Association, New York, New York, April 1970. (VM)

Reviews the advantages of computer simulated environments for experiments, referring in particular to acid-base titrations. Includes pre-lab instructions and a sample computer printout of a student's use of an acid-base simulation. Ten references. (PR)

The primary purpose of this study was to determine through controlled classroom experimentation, the relative effectiveness of audio-tutorial and programmed learning as a supplement to conventional classroom instruction. (Author)

Programed instruction in an art concept is beneficial and should be used to supplement classroom activities and to deal with the special needs of individual students. (CK)