3o6 M E M O I R S of the 
p?r T^eliquiut}}, immediately turn milky and muddy 5 and the 
ice of this water was a fort of very rarified white ice : The 
tube of almoft an inch diameter being filled to the height 
of 6 inches as before, with river water, which would readily 
mix with oil of tartar, without the leaft precipitation, and fet 
to freeze in a mixture of fnow and fait, it gained but | of an 
inch after it was frozen, whereas the pump-water got f of an 
inch ^ it was obfervable, that when the water in all thefe ex- 
periments began to freeze, a great many fmall bubbles conti- 
nually rofefrom the bottom: A tube being filled with boiled 
pump-water to the height of fix inches, and fet to freeze as 
before, it rofe hardly to 7 of an inch above the mark, when 
the fame water unboiled rofe to f. 
^rognoftics of Hurricanes 5 hy Capt. Langford. Phil. Tranf. 
N° 245. p. 407. 
IT hath been the cuftom of the ErigUJh and French inhabi" 
tantsof the Caribhee iflands to fend in, about the month o^ 
June^ to the native Caribbees oi2Jominico^nd St. Vincent^ to know 
whether there would be any hurricanes that year 5 and about 10 
or 1 2 days before the hurricane came, the natives conftantly 
fent them word, and it very feldom or ever failed^ from one of 
thefe hidians^ Capt. Langford had the folio irg prognoflics 5 
I. All hurricanes come either on the day of the full, change, 
or quarter of the moon. 2. If it will come on the full-moon, 
you being in the change, then oblerve thefe figns; that day 
you will fee the fkies very tucbulent, the fun more red than 
at other times, a great calm, and the hills clear of clouds, or 
fogs over them, which in the highlands are feldom io-^ likewife 
in hollows, or concaves of the earth, or wells there will be a 
great noile, as if you were in a great ftorm, and at night the 
ftars looking very big with burrs about them, and the ncrtti- 
weft fky very black and foul, the fea fwelling ftronger than at 
other times, as ufually it doth in great ftorms, and fometimes 
for an hour or two that day, the wind blows very hard wefterly, 
out of its ufual courier On the full of the moon you have the 
fame figns, with a great burr about the moon, and many times 
about the fun^ the like figns muft be taken notice of on the 
«luarterdaysof the moon, in the months of July, y^uguft, and 
September^ for the hurricanes come in thofe months 5 the fooneft 
the Captain heard of, was the 25th o^ July, and the lateit was 
the 8ih of September -J but the ufual month they come in is 
j4ugu(i. 
The 
