Abstract
Supplementary experiments to Report II (Papers in Meteorology and Geophysics, Vol. I, No.2∼4,1950) are carried out. They cover further tests on the windmill blades for the combination wind vane and anemometer, oscillation characteristics of Dines pressure tube, R. A. E. pattern wind vane and “ Windial ”, and ventilating capacities of C. M. O. -S 50 L, -S 50 M and U. S. Army type radiosonde ventilator tubes.
