Abstract
Some glass-like ice-drops, considered to be frozen rain drops or cloud particles (in this paper, these drops will be seen ice pellet)have been found in falling snow-flakes during the observation on radiation from the snow surface at Maruike, Shiga Plateau, on February 25,1957.
The author made some observations on the shape, size-distribution, and collision coefficient of the ice pellets from their plastic replicas, and found that MARSHALL-PALMER'S equation holds well for the sizedistribution of the ice pellet, and that combination among the similarsized ice pellets occurs more frequently than expected.
