Ein praktisches Hilfsmittel für die Untersuchung genadelter Insekten unter dem Binokular.

Abstract

The principle of a mechanical device is described which facilitates the determination of pinned insects by means of a binocular microscope. Design and functions of two versions of this device are explained. Instructions are given for building it from the drawings included in the text and for using it in combination with various types of binoculars.