Length of days.
the longest day has sixteen and a half hours. At Stockholm
and Upsala, the longest has eighteen and a half hours, and the shortest five and a half.
, Dantzic and Stettin
, the longest day has seventeen hours, and the shortest seven.
At St. Petersburg
and Tobolsk, the longest has nineteen, and the shortest five hours. At Torneo, in Finland
, the longest day has twenty-one hours and a half, and the shortest two and a half.
At Wandorbus, in Norway
, the day lasts from the 21st of May to the 22d of July, without interruption; and in Spitzbergen, the longest lasts three months and a half.