Meteorological observations at Berlin, Germany, [communicated] by Johann Theodor Jablonski Tables of daily meteorological observations for the year 1726, arranged on printed sheets, one per month, with three sets of observations per day. Columns for the day and time, the latter divided into 'Matins' [morning] 'Meridies' [noon] and 'Vesperi' [evening], followed by barometer and thermometer, wind direction and strength, and 'Tempestas & Aeris Qualitas' [weather and quality of the air]. A column for rainfall has not been used. For each month, the tables of data are followed by a graphical representation of barometer readings, headed: 'Conspectus Ichnographicus Ascensus & Descensus Mercurii in Barometro per mensem...[a graphic survey of the rise and fall of mercury in the barometer for the month...]. Each monthly sheet is headed 'Observationes Meteorologicae Berolinenses'. 1 January-31 December 1726