Some observations relative to the climate and diseases of Sierra Leone / by Thomas Masterman Winterbottom.
- Winterbottom, Thomas Masterman, 1765-1859.
- Date:
- 1800
Licence: Public Domain Mark
Credit: Some observations relative to the climate and diseases of Sierra Leone / by Thomas Masterman Winterbottom. Source: Wellcome Collection.
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![[ 7° ] with little or no thunder. The approach of» tornado is always indicated by denfe black clouds, gathering in the eaft, which gradually mcreafe until a confiderable part*of the fky is darkened ; at the fame time, faint lightnings flafh in the horizon, and rumbling thunder is heard at longer or fhorter intervals. It is either calm a confiderable time before the tornado comes on, or if there be a breeze, as the tornado comes on, it inflantly flies .round to the E. According to a vulgar opinion, tornadoes can occur only at high or low water ; a little attention, however, would foon have ihewn the error of it; they come on at all times of tide, but are moft frequent during the night, or early in the morning. The atmofphere at Sierra Leone is gene¬ rally fo obfcured by clouds or haze, or both, that it is very rare to fee even part of a day attended with a clear fky ; infomuch fo, that it is an obfervation made by many who have, been long upon the coaft, though it mere par¬ ticularly applies to the coaft to leeward of Cape Palmas, that it is a rare thing to fee the fun rife in Africa. This thicknefs of the : atmofphere](https://iiif.wellcomecollection.org/image/b30476732_0031.jp2/full/800%2C/0/default.jpg)
