Historical uses of Arum maculatum (L.) are summarized. Temperature changes during spadix maturation, spathe uncurling in the presence of flower tissue, indol-3-y1 acetic acid, and gibberellic acid are investigated in the laboratory. Dilute solutions of both phytohormones cause significant spathe uncurling. Further investigations are suggested.…

Methods of investigating plant root growth developed for research purposes can be adopted for student use. Investigations of the effect of water table level and of ethylene concentration are described, and techniques of measuring root growth are explained. (Author/ML)

Presented is a guide for students planning to do a science project. Discussed are preliminary organizational matters, report plans, choosing topics, setting up procedures, time management, and documentation. The most important steps for producing a successful project are summarized. (CW)

Describes a number of laboratory experiments using woodlice as experimental animals. Includes topics such as physiology of water relations, behavior, and rhythmic activity. (CS)