Meteorological ‘Obfervations, 569 
Qn! January.13; 24; 154 there fell fo much 
fnow; that’ the. great. turnpike, road , between 
_ London and Dover, .was utterly, impaflable even 
for: horfemeny, for! feveral;days,.;Qn jthe 28th. 
the river Medway (the water of which is falt) 
was frozen over, ftom-Rochefter bridge to Gil- 
lingham. » Many» hundreds of’ perfons' walked 
from ‘one fhore to the other zi ;and, butts of 
water were rolled over the ice from the King’s 
dock yard, to the men of war in the harbour. 
The breath of many; ;was condenfed and fro- 
zen to the fheets near their mouths in bed, 
in chambers, which at every other time would 
be called warm rooms.-—January 29, 30, 31, 
were clear days, not one cloud was feen. A 
Thermometer was ‘conftantly “expofed: to’ the 
fun, which at no ‘time was ablé to taife ‘the 
mercury higher than’ one~ degree above the 
freezing point; but the greateft = of the day 
not fo high by many divifions.::°Two .Ther- 
mometers (made by Nairne) were ufed i in the 
above. obfervations, They are, very g good’ ones, 
being graduated according» to the bores of the 
tubes: they not only correfpond with each other, 
but, alfo with others of the belt fort. Thefe 
obfervations were made in a ; sarden, near the 
market- place, by Mr. Simmons, fyrgeons, who, 
when the thermometer had fallen to ‘four, which 
was the greateft degree of natur al cold he re- 
Bhoboin as. membered 
