Presents concrete suggestions regarding the role of individuals and groups within the Division of Invertebrate Zoology (DIZ) of the American Society of Zoologists (ASZ) regarding their contributions toward constructive environmental action. (Author/EB)

Presents a reliable method for the sterilization of ciliates using common lab equipment and skills. A modified Glaser and Coria technique is used. (MA)

Discusses the defense mechanisms and immune reaction found in invertebrates, and examines the wealth of related biological problems that need study and many of the leads that have recently been developed. (JR)

A level of organization schema is presented which uses the concept of the organism as the pivotal unit and emphasizes biological relationships. (BB)

Describes the construction and operation of an automatic insect dispenser suitable for feeding small vertebrates that are being maintained for behavioral experiments. The food morsels are squirted from their chambers an an air jet, and may be directed at a particluar portion of the cage or distributed to different areas. (JR)

Cites the public image problem of field biologists and systematists. Discusses systematics and natural history including species variation, ecology, management of organisms and appreciation of nature. Describes widespread fallacies which downplay the importance of field biology and suggests ways to improve its image. (CW)

Discussions from the conference on "The Use of Animals in High School Biology Classes" are highlighted in this article. The list of science fair rules, which resulted from the conference, is included. (SA)

Suggests creating a biological park to stress the interrelationships between plants and animals. States that the techniques of a zoo should be applied to paleontology, anatomy, anthropology. Gives advantages of this creative concept. (RT)