Page:Popular Science Monthly Volume 53.djvu/72
THE POPULAR SCIENCE MONTHLY.
In the colder seasons of the year the kites would usually have come back from such passages beautifully iced in minute crystals. In an observation made in October, -189 6, the box of instruments, at the height of three quarters of a mile, entered a cloud from which
it emerged at an elevation of about a mile. The record showed that close under the cloud the temperature was just below freezing; above the cloud the atmosphere was very dry; and at the limit of the ascent (9,375 feet) the temperature was twenty degrees below freezing.