A sampler making discrete spore prints, useful for spore release studies

A spore trap in which suction time, air flow, and time intervals may be varied is described. During each sampling interval, air spora are collected at the periphery of a standing drum, making discrete spore prints on an adhesiYe surface. At the end of the total sampling period, the tape is cut into small pieces and mounted for example in Kaiser's glycerine for microscopy. This sampling device has proved especially useful in spore release studies.