Abstract
VIENNA Central Meteorological Office (1908).—The forty-fifth year-book (new series) of this important service appears in the same form as heretofore; it includes daily observations and monthly and yearly results in the international form for a number of stations, hourly observations for Vienna, and temperature and rainfall observations at other stations. Purely rainfall statistics are published by the Hydrographic Office, and observations in Hungary and elsewhere are also separately published. Observations of the upper air are actively carried on by manned and registering balloons. Weather forecasts were sent free to all post and telegraphic offices between April and November, in addition to the daily publications of the usual weather report (with chart). A separate appendix issued with this volume contains the results of thunderstorm observations in Lower Austria in 1902–5, by Dr. A. Defant. These include two maps showing the districts of the first appearance and final disappearance of the storms. The greater elevations of ground are seen to offer favourable conditions for the formation of the storms, and to promote their development in a remarkable manner. Very few storms originate in the more level districts; these check their development, and become the places of dissolution of the storms which approach from other parts.
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