304 METEOROLOGICA I* OBSERVATIONS. 
FROZEN SLEET. 
January 20. Mr. H.'s man says that lie caught this day, in a 
lane near Hackwood park, many rooks, which, attempting to fly, 
fell from the trees with their wings frozen together by the sleet, 
that froze as it fell. There were, he affirms, many dozen so 
disabled. 
MIST, CALLED LONDON FOG. 
This is a blue mist which has somewhat the smell of coal snxoke, 
and as it always comes to us with a N. E. wind, is supposed 
to come from London. It has a strong smell, and is supposed 
to occasion blights. When such mists appear they are usually 
followed by dry weather. 
REFLECTION OF FOG. 
When people walk in a deep white fog by night with a lan- 
tern, if they will turn their backs to the hght, they will see 
their shades impressed on the fog in rude gigantic proportions. 
ITiis phenomenon seems not to have been attended to, but 
imphes the great density of the meteor at that juncture. 
HONEY DEW. 
June 4, 1783. Vast honey dews this week. The reason of 
these seem to be, that in hot days the effluvia of flowers are 
drawn up by a brisk evaporation, and then in the night fall down 
with the dews with which they are entangled. 
This clammy substance is very grateful to bees, who gather 
it with great assiduity, but it is injurious to the trees on which 
it happens to fall, by stopping the pores of the leaves. The 
greatest quantity falls in still close weather ; because winds dis- 
perse it, and copious dews dilute it, and prevent its ill effects. 
It falls mostly in hazy warm weather.* 
MORNING CLOUDS. 
After a bright night and vast dew, the sky usually becomes 
cloudy by eleven or twelve o'clock in the forenoon, and clear 
* In a former note, 1 have explained the origin of this substance, so rangely misunderstood 
by Mr. White. — Ed. 
