Annotation:Q1734

Eduard Rübel, founder of the Geobotanical Research Institute, writes about this anemometer that it is particularly suitable for work in the field. The apparatus is handy to carry around: its height is only 15 cm and the width of the cross is only about 6 cm. (Rübel, Eduard Geobotanische Untersuchungsmethoden, Berlin 1922, p. 95)