Describes a method, using simple algebraic notation, for calculating the nature of the salient features of a sugar pyranoid ring, the steric disposition of substituents about the reference, and the anomeric carbon atoms contained within the ring. (CS)

Presents a scheme that illustrates the interdependence of proteins and nucleic acids in hereditary functions, built around the arguments and assertions on the nature and synthesis of nucleic acids and proteins presented in current texts. Provides background information in DNA synthesis, RNA synthesis, and a combined "hereditary system." (CS)

Describes an undergraduate laboratory experiment using viscosity to follow the progress of the contractile process in muscles. This simple, short experiment illustrates the action of ATP as the source of energy in the contractile process and the catalytic effect of calcium ions as a control in the energy producing process. (CS)