460 On the Process of making Spirits in [Dec. 



of Allan's being applied above the liquor ; but both instru- 

 ments indicate specific gravity, — that is to say, the weight 

 of a given bulk of the worts, supposing the same bulk of 

 distilled water to weigh 1000. 



The strength or value of worts is estimated according to 

 their specific gravity, which, on reference to tables con- 

 structed for the purpose, shews the quantity of saccharine 

 matter, or solid extract contained in a gallon of any given 

 degree of specific gravity. 



The following is a specimen, extracted from Bate's Sac- 

 charometer Tables : — 



Sp. gr. lbs. per gal. 



1-030 -752 



1-035 -904 



1-040 1-033 



1-045 ...... 1-163 



1-050 1-293 



1-055 1-422 



1-060 1-552 



1-065 1-682 



1-070 1-882 



1-075 ...... 1-941 



1-080 2-071 



1-085 2-201 



1-090 2-332 



The saccharometer is of vast importance to the practical 

 distiller, and its invention forms an era in his art, for, by it 

 he is enabled to estimate, with considerable precision, the 

 quantity of spirits to be expected from worts of any gravity, 

 as will be shewn hereafter ; by it he also estimates the 

 value of the grain employed, and, of course, the quantity 

 of worts at any required specific gravity to be obtained 

 from any given quantity of grain employed. For example, 

 supposing, (which is near the truth, where large proportions 

 of oats are used), that one hundred-weight of mixed grain 

 will yield 70 lbs. of saccharine matter in the mash-tun, 

 and that such grain weighs 42 lbs. per bushel, then, as 

 112 : 70 :: 42 : 26-2, the saccharine matter which each 

 bushel will produce. Now, if it is wished to be known how 

 many gallons of worts at any given specific gravity will be 

 obtained from a bushel of such grain, we have only to divide 



