on Spirituous Liquors'. j2q 
filled with the liquor. This mark was made by fixing the 
bottle in a lathe, and turning it round with great care, in 
contact with the diamond. The glafs of this bottle was not 
very thick; it weighed 916 grains, and, with its filver cap, 
93 6 - ; 
When the fpecific gravity of any liquor was to be taken by 
means of this bottle, the liquor was firft brought nearly to the 
required temperature, and then the bottle was filled with it up 
to the beginning of the neck only, that there might be room for 
fhaking it. A very fine and fenfible thermometer (to be more 
particularly defcribed hereafter) Was then palled through the 
neck ot the bottle into the contained liquor, which fhewed 
v» nether it was above or below the intended temperature. In 
* ■ * ' former caie tne bottle was brought into colder air, or 0 ven 
plunged for a moment in cold water ; the thermometer in the 
mean time being frequently put into the contained liquor, till 
- 1 ** was found to fink to the right point. In like manner when 
tne liquor was too cold, the bottle was brought into warmer 
air, immerfed in warm water, or more commonly held be- 
tween the hands, till upon repeated trials with the thermome- 
ter the juft temperature was found. It will be underftood, that 
during the courfe of this heating or cooling, the bottle was 
very frequently fhaken between each immerfion of the ther- 
mometer ; and the top of the neck was kept covered, either 
with the finger, or a filver cap made on purpofe, as conftantly 
as poffible. Hot water was ufed to raife the temperature onlv 
in heats of 8o° and upwards, inferior heats being obtained by 
applying the hands to the bottle ; when the hot water was em- 
ployed, tne ball of the bottle was plunged into it and again 
quickly lifted out, with the neceliary fhaking interpofed, as 
Yql. LXXX. X. x often 
