380 ESSAYS anv OBSERVATIONS 
2. AT the fame time, I poured upon a 
pound of the fame calcined hells, 8 pounds 
of boiling water. | 
_ 3. Turspay, at eleven before noon, I 
poured fifty ounces of the lime-water N 2, 
on nine ounces frefh calcined oifterthells ; 
and, at eight in the evening, I filtered, 
through brown paper, thefe three waters, 
and put fixteen ounces of each of them in- 
to a bafon by itfelf; and, having placed the 
bafons in a clofet, where they might be pretty 
free from duft, I let them ftand 19 days. 
After this, I filtered the feveral waters through 
brown paper, and having collected the earthy 
crufts, and dried them well; J] found, that 
Nei. afforded very near four grains, N° 2. 
near 12 grains, and N°3. rather more than 
13 grains. 
Attuo’ thefe three lime-waters had, at 
the time they were filtrated, quite loft their 
tafte; yet, obferving that N° 2. and 3. be- 
came turbid when mixed with falt of tartar, 
I added eight grains of this falt to twelve 
ounces of thefe two waters; and the white 
powder which was precipitated, when dried, 
weighed juft one grain and a half. 
HAVING 
