ALCOHOL 



Table of the Specific Gravities of different Mixtures, $c. (continued.) 



49 



Experiments were made, by direction of the committee, to verify Gilpin's Tables, 

 which showed that the error introduced in ascertaining the strength of spirits by 

 Tables founded on Gilpin's numbers must be quite insensible in the practice of the 

 Revenue. The discrepancies thus detected, on a mixture of a given strength, did not 

 amount in any one instance to unity in the fourth place of decimals. From a careful 

 inspection of such documents the committee are of opinion that Gilpin's Tables possess 

 a degree of accuracy far surpassing what could be expected, and sufficiently perfect 

 for all practical or scientific purposes. 



The following Table is given by Mr. Lubbock, for converting the apparent specific 

 gravity, or indication, into true specific gravity : 



VOL. I 



