( U4 ^ 
'the Air. And the day after, vi%i March 27. proved fo 
wet a day, that almoft 5 pound of Rain fell through my 
Tunnel, a large quantity for the compafs of 12 Inches 
Diameter in 1 4 or 1 5 hours time. The Wind and Clouds 
were all the while calm and (till, and frequeutly chang- 
ing from Point to Point, near round the whole Compafs 5 
and the Rain that fell, fell thick, in fmall drops. Which 
makes me think, that the warm foggy Vapours, raifed 
in great plenty the day or two before, as foon as they 
were mounted alofr, met with fuddain extreme Cold of 
the middle Region, and were thereby haftily condenfed, 
and the Air being at the fame time very light (the Baro- 
meter being then very low) they fpeedily tumbled down 
in fmall and thick Drops of Rain. 
And this I take to be the very cafe of the vernal and 
autumnal Rains already mentioned, viz. In Spring, when 
the Earth and Waters areloofed frdm the brumal Confti- 
pations, 'the Vapours arife in great plenty. So alfo in 
Autumn, when the Heats that diftipated them in Summer, 
and alfo warmed the fuperiour Regions, are abated, the 
Vapours raifed then in great plenty are foon condenfed 
by the Cold of the fuperiour Regions, and fo are forced 
down in more plentiful Rains than at other Seafons, when 
either the Vapours are fewer, or Cold of the fuperiour 
‘Regions lefs. 
For a farther proof, or at lead illuftration of what hath 
been faid, let us again caft an Eye upon June laft, a Month 
as unfeafonably wer, as ’twas unufually Cold. The Cold 
thereof I have already taken notice of 3 and the wet Wea- 
ther accompanying it was fo unfeafonable to us in South- 
Britain^ that although we had great and welcome Crops 
of Hay after a great fcarcity the preceding Year, yet we 
had fcarcely any good Weather to make it in. So Dr. 
Scheuchzcr faith it was with them in Switzerland^ in 
his Remarks on that Month ; Fuit hie menfis^ nt ex 
pluviii menfurata conjtat^ prater modum humidns^ & mag- 
no 
