378 ESSAYS and OBSERVATIONS 
might judge whether they were'all equally 
{trong of the lime or not. The refult of 
the experiments was, that one tea-fpoonful of 
claret required four tea-fpoonfuls of the lime- 
water (b); two and about one third of (c); 
and one and a half of (d), to give it the full 
gun-powder colour; Thefe experiments, 
tho’ not fo accurate as thofe made with the 
balance, yet clearly demonftate a remark- 
able difference of ftrength betwixt the above 
Iime- waters. 
I. Twenty grains of falt of tartar be- 
ing mixed with eight ounces and two drams 
of the weak lime-water (4), after it had ftood 
five days on the lime, the mixture became 
immediately white and turbid, and foon pre 
cipitated a white powder ; which, being fepa- 
rated from the water, by filtration, and dried, 
weighed 22 gr. 
Tue fame quantity of falt of tartar, mix- 
ed with eight ounces and two drams of double 
lime-water, that had ftood eight days on the 
lime, became confiderably thicker and whi- 
ter than the former; and afforded rather 
more than 7 grains of white powder. 
Tue fame quantity of falt of tartar being 
mixed with eight ounces and two drams of 
the 
