- 7 ^oo } 
enough BoyVd ) but in the Winter, when the Snow is 
melted, it niuft boyl longer to make it agreeable. 
When my People doubt whither the Water be fufSci- 
ently boyled, they Tafte it before they put it into the 
Tea-pot ^5 they can guefs too pretty well by the Smell of 
the Water whether or no it be enough. 
As we do with our Tea- water, fo we do alfo with 
Coffee water, tho in drinking Coffee I could never judge 
whither the Water was fufficiently boyled. 
Now to fatisfie you, Sir, as far as lies in my power ^ I 
took a Drop of Rain- water that was well l)ovrd, and 
which I found to he fo when I drank the Tea that was 
infufed into it. 
This Wa^er was fully boyrd in a tinn'd Water Kettle, 
which had a good Cover upon it, fo as no Smoak could 
get in, and was only ufed by me for that purpofe. 
This Water being rnoftly exhaled, there remain'd abun- 
dance of little Salt Particles of an oblong Quadrangular 
Figure, whofe Thicknefs was almoft equal to their Breadth, 
and the upper parts of many of them were pointed like 
ground and Pointed Cryfta! ^ but when I vievv'd them 
more narrowly, I perceived that from every Angle there 
was^ a Point (landing out. 
Figure the i. A and B reprefent two of thefe Salt Par- 
ticles, in which I could perceive none of thofe points,/ 
that are plainly to be feen in Fig. 2- between C D and E, 
and whereof there were a great many which were other- 
wife very like Fig. i. A B. 
Then I took fome Rain-water, that was but juft upon 
Boyiing, lo that F could fee a great many Air- bubbles 
fifing irom the bottom ot the Kettle. 
After 1 had exhaled this Water alfo, I difcoverd abun- 
dance of the aforefaid Salt Particles, and in as large a 
quantity as in the other Water that had been well boyl- 
ed • but befides them there were a few Salt Particles, in 
ftiape like Fig. 3, F G and H, of which latter fort I could 
