PHYSICAL anp LITERARY. 373 
On the other hand, my worthy friend 
and Collegue Dr Aljffon, having obferved, 
feveral years fince, that quick-lime continued 
to communicate its virtues to water much 
longer, than any one, before, had imagined ; 
tellstus;: that he found afterwards, by expe- 
timents, that half a.dram of flone quick- 
dime yielded forty ounces of lime=water ; and 
that, after a pound of the fame quick-lime 
had afforded five hundred: pounds of -lime- 
water, the water procured» from it was.as 
ftrong of the lime as‘ever*. Hence he i- 
magines, that as water can only be impreg- 
nated to.a certain degree; by quick-lime,’ fo 
this will happen equally, whether the quick- 
lime be frefh from the fire, or has had five 
hundred times its weight of water poured on 
it before ; provided the water be allowed time 
enough to extract the virtues of the lime +. 
And further affirms, that the ftrength of lime- 
water cannot be increafed by flaking new- 
made lime in it, becaufe the water can take 
up no more of the lime than it had before t. 
As 
| -® Philofophy ‘Tranfaet. vol. 47. p: 266, and Differtation 
On quick-lime, Sc.’ p.4. 5. & 6. where the fame thing is 
affirmed of oifterfhell lime. 
“+ Differt. on quick- -lime, p. 11. & 53. 
¢ Id. p. rr. 
