of M dteor ological Obfervations. 247 
in the fuperior regions, by which means its electri- 
city is feparated from the other parts, and by the 
ftronger repulfion of the inferior and more ¢on- 
denfed medium, is forced up in that waving lam- 
bent appearance we often fee it. 
17th. ‘That foon after ftreamers have been con- 
fiderable, either bodies of clouds are formed, ot 
elfe a greater degree of cold is immediately pro- 
duced. 
18th. ‘That the quicker ftreamers are in their 
motion, and the more they appear to be fouthward 
of the zenith, the fooner will a heavy body of 
clouds be formed, and in all probability a fall of 
Tain, &c. enfue-—When they have been in that way 
confiderable, as to extent and duration, the clouds 
begin to form with a precipitating appearance, gene- 
rally in twenty-four hours after, and the fall takes 
place moftly before the end of thirty-fix hours. : 
rgth. ‘That when they are of a deep orange or 
red colour, fteady in their appearance, and con= 
fined to the north or eafterly parts of the horizon, 
there is reafon to expect a wind from the north 
or eafterly points, and one or two days of dry 
weather, though cold for the feafon, before yr fall 
takes place. 
goth. That light or pale ftreamers are a pidbtile 
fign of a fouth or wefterly wind with a quick forma- 
tion: of clouds, &c. and when they appear, or 
flalh and quickly difappear, in all the parts of the 
hemifphere, waving quickly with vivid colours, it 
is 
