Argues against Hillman and Sartory's views of cell structure (EJ242880), pointing out that they are erroneous in their analysis of the motives and working methods of the scientific community, in their total rejection of information coming from electron microscopy, and in their claim that lysosomes and endoplasmic reticulum are imaginary. (DC)

Describes experiments on properties of leather performed by a science teacher, assisted by senior science students. Concludes that the finish layer contributes a major part of the resistance to air passage, reducing permeability of leather. Flexing increases permeability and may, in its action, discriminate between finishes. (Author/JN)

Listed and described are student A-level biology projects in the following areas: Angiosperm studies (e.g., factors affecting growth of various plants), 7; Bacterial studies, 1; Insect studies, 2; Fish studies, 1; Mammal studies, 1; Human studies, 1; Synecology studies, 2; Environmental studies, 2; and Enzyme studies, 1. (CS)

Presents the mathematics of body size and surface area to volume. Examines arguments used related to the topic. Concludes that while some of the traditional arguments are valid, most are not. One analysis for an organism is provided in an appendix. (YP)

Describes an environmental project which involved the collection and exchange of data on butterflies, including information on climate and vegetation, to monitor their distribution. Schools in several European countries exchanged information via e-mail, and the resulting website has evolved into a site offering information, survey data, curriculum…