? An ) ^ _ , 
sMni after this, the whole Whips would be prey'd on, but the Yelk 
would not be touch’d or corrupted. By this means we did preferve 
the Ale to $amaicd s and it was much better, than at Deal, I was 
told fince by fome others that the Experiment is ufual with them* to 
keep Ale in England a quarter of a year : And if Eggs be thus put 
into March-beer , they preferve it from growing ever harfli. They 
mud be put in, after the Liquor has done working. 
Concerning the Thames-water, it is not only obfervabIe 3 that In 
eight months time it acquires a Spirituous quality, foasto burn like 
Spirit of Wine j and fome Eafi-India (hips, I am informed, have 
run the hazard of firing by holding a Candle near the Bung- hole at 
the firft opening of the Cask a , ) but alfo that the (linking of it is no 
corruption, nor perhaps unwholefome 5 for we drank it all the way, 
v fo as to hold our Nofes, yet had no (icknefs, but we had proportion 
of Brandy each week, which perhaps might corred it. If you take 
off the Bung from any Cask that dinks, and let the Air come to it, 
it will in 24 hours become fweet again. And if you take a Broom* 
flick, and dir it about well, it will become fweet in 4 or 5 hours call- 
ing a black Lee to the bottom, which remixes with it, and fo occafi- 
ons a third or fourth fermentation, and dench 1 after which it dinks 
no more. But, though Thames-water upon dench do not putrifie, 
yet other Waters (as far as hath been hitherto obferved) do become 
irrecoverable upon dinking, and dangerous to drink. 
I obferv’d at Sea, that though Glauber fay , the water, as it grows 
Salter, becomes Greener , yet that is falfe. For, after we were out of 
the Narrow, the Sea grew darkifh , and after perfed Mjtre, yet 
was it much more Salt, the farther we went : as I tried by a Water - 
poife of Glafs, with Quick- diver at the one end, it rofe about hklf 
an inch above the Sea- water in the Downs ; and at 24 degrees more, 
2 inches. But after that, I never obferved any difference unto Jamai- 
ca, the Sea being probably fo impregnated with Salt, as not to imbibe 
mores which erodes another obfervation, that the nearer the Tro- 
piques and the Line, the Salter the Sea, 
As to the Colour of the Sea, I conceive there is as great variety in 
it and its deams, as in Grounds at Land 5 which' may occalion the 
(icknefs in fome places 'moep than in others,; For the Sea fmells diffe- 
rently in the Narrow a And as to colour, it is of a Sea-green 
(and more fickly) in the Downs, than at Torbay , , and on Fly month 
€oa(l more, than paft th t.Lknds^nd % and in the Fay of Fife ay, than 
In. 
