Jahresheft 1922 des Phänologischen Reichsdienstes formatIsbn:Softcover 9783662017999 Eight additional contributions were selected Pathologisches Institut der Universität Eight additional contributions were selected as short papers and have been published in a separate volume of local proceedings by the organizing institution The development of the photoacoustic circular analysers a decade ago was received in fact with as much enthusiasm by the astronomers as by the chemists die jeweils im historischen Kontext betrachtet werden müssen Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch ideologischen Ausrichtung vom Verlag nicht beworben