Lea. VI Salts in Water, 397 
4. $. Fourthly, What quantity of the feveral kinds of Salt, may 
be diflolved feverally, in the fame quantity of Water > 
5. $... Fifibly, Whether by diflolving a salt in Water, there beany 
Space gained, or not? That is, whether the Bulk of the Water be 
Į greater, before the Salt lying in it be fully diffolved, than it is after- 
wards? Or if aCubick Inch of Salt be diflolved in nine Cubick Inches 
of Water; Whether the Water will then fill a Vefel of ten Cubick Inches 
content 2 
6. $. Siathly, Whether the Space be equally gained, by an equal 
encreafe of the fame Salt 2 
7. $. severthly, Whether upon the Solution of feveral kinds of 
Salts, be gained fo many feveral quantities of Space? That is, if the 
Solution of common Salt gains, fuppofe, an Inch, whether the solution of 
Salt Armoniack gains as much, or more, or lef? and (0 for other salts, 
8. $. Eighthly, What that juft {pace may be, which any sa/t gaineth 
with refpeét to its own Bulk, or that of the Water 2 
9. $. And firft, for the superimpregnation of Water; I put into 
a bottle 3ij of fair Water; adding thereto, firft balfan Ounce of Ni- 
' tre 3 and afterwards more, asthe Water would diflolve it 5 and (that 
Imight be fare the Inpregnation was full) fome portion above what 
ibero having feparated this remaining portions 
I put to this Solution of Nitre, two Drachms of Sal Armoniac 3 which 
wholly and eafily diffolved in the faid Solution 5 though it would not 
bear a grain more of Nitre. [then added a third Drachm of Sal Ar- 
moniac, after thata fourth, and a fifths all which, within the fpace 
== of halfan hour, were perfeétly diffolved inthe faid Solution, without 
any precipitation of the Nitre. . 
10. §. In the making of this Experiment, two things, to render it 
infallacious, are to be noted. That the faid Salts were not diflolyed 
by the help of Fire, but only by a ftrong and continued Agitation, 
“And that this was done upon a warm day : which I mention, becaufe 
Mul that even the changes of the weather will fomewhat alter the Solubi- 
iga ty of the Salts. 
11. $. Having made the Experiment upon two Salts,I proceeded to 
repeat it upon three. And firft I difíolved as much common Salt in 
3ij of Water, as that quantity would bear. Then having feparated 
the fubfiding portion 5 I putto the Solution, no lef than five Drachms 
of Nitre, which by a continued Agitation, was wholly diflolved there 
in, neither the Nitre nor the common Salt being in the leaft precipitated. 
Then adding a Scruple more, it would not diflolve, but fübfided: This 
fecond fufiding portion, Iagain feparated 5 and then put to this Super- 
impregnation, near 3) of Sal Armoniac, which was allo diflolved as the 
former. And ifas many more Salts had been added, tis probable that 
the fame Water would have born fome quantity of them all. 
12. §. From this Experiment, it is a Conclufion demonftrated, 
That not only the vifible Cryftals, but the very Aromes of every Salt, 
at leaft thofe Particles which are ultimately diffolved in Water, have a 
different Figure one from another. Becaufe that if they were all of 
> would be no Superimpregnation, but the Pores of 
uld imbibe as much of one Salt, as anfwers to the 
tal of two more Salts imbibed t is to fay, it would as well 
imbibe two Ounces of common $. one Ounce of common Salt and 
Xx another 
pu = 
