The mixture of alcohol and water, taken as spirit in Mr. Gilpin’s tables, is that of which the specific gravity is 0·825 at 60° Fahr., water being unity at the same temperature. The specific gravity of water at 60° being 1000, at 62° it is 99,981. Hence, in order to compare the specific gravities given by Mr. Gilpin with those which would result when the specific gravity of water at 62° is taken at unity, all the former numbers must be divided by 99,981.

Table of the Specific Gravities of different Mixtures, by Weight, of Alcohol and Water, at different Temperatures; constructed by Mr. Gilpin, for the use of the British Revenue on Spirits.

Tem-
pera-
ture,
Fahr.
Pure
Alco-
hol.
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
5
Water.
10
Water.
15
Water.
20
Water.
25
Water.
30
Water.
35
Water.
40
Water.
45
Water.
50
Water.
55
Water.
60
Water.
65
Water.
70
Water.
75
Water.
80
Water.
85
Water.
90
Water.
95
Water.
100
Water.
Deg.
300·838960·849950·859570·868250·875850·882820·889210·895110·900540·905580·910230·914490·918470·922170·925630·928890·931910·934740·937410·939910·94222
35 ·83672 ·84769 ·85729 ·86587 ·87357 ·88059 ·88701 ·89294 ·89839 ·90345 ·90811 ·91241 ·91640 ·92009 ·92355 ·92680 ·92986 ·93274 ·93541 ·93790 ·94025
40 ·83445 ·84539 ·85507 ·86361 ·87184 ·87838 ·88481 ·89073 ·89617 ·90127 ·90596 ·91026 ·91428 ·91799 ·92151 ·92476 ·92783 ·93072 ·93341 ·93592 ·93827
45 ·83214 ·84310 ·85277 ·86131 ·86905 ·87613 ·88255 ·88849 ·89396 ·89909 ·90380 ·90812 ·91211 ·91584 ·91937 ·92264 ·92570 ·92859 ·93131 ·93382 ·93621
50 ·82977 ·84076 ·85042 ·85902 ·86676 ·87384 ·88030 ·88626 ·89174 ·89684 ·90160 ·90596 ·90997 ·91370 ·91723 ·92051 ·92358 ·92647 ·92919 ·93177 ·93419
55 ·82736 ·83834 ·84802 ·85664 ·86441 ·87150 ·87796 ·88393 ·88945 ·89458 ·89933 ·90367 ·90768 ·91144 ·91502 ·91837 ·92145 ·92436 ·92707 ·92963 ·93208
60 ·82500 ·83599 ·84568 ·85430 ·86208 ·86918 ·87569 ·88169 ·88720 ·89232 ·89707 ·90144 ·90549 ·90927 ·91287 ·91622 ·91933 ·92225 ·92499 ·92758 ·93002
65 ·82262 ·83362 ·84334 ·85193 ·85976 ·86686 ·87337 ·87938 ·88490 ·89006 ·89479 ·89920 ·90328 ·90707 ·91066 ·91400 ·91715 ·92010 ·92283 ·92546 ·92794
70 ·82023 ·83124 ·84092 ·84951 ·85736 ·86451 ·87105 ·87705 ·88254 ·88773 ·89252 ·89695 ·90104 ·90484 ·90847 ·91181 ·91493 ·91793 ·92069 ·92333 ·92580
75 ·81780 ·82878 ·83851 ·84710 ·85496 ·86212 ·86864 ·87466 ·88018 ·88538 ·89018 ·89464 ·89872 ·90252 ·90617 ·90952 ·91270 ·91569 ·91849 ·92111 ·92364
80 ·81530 ·82631 ·83603 ·84467 ·85248 ·85966 ·86622 ·87228 ·87776 ·88301 ·88781 ·89225 ·89639 ·90021 ·90385 ·90723 ·91046 ·91340 ·91622 ·91891 ·92142
85 ·81291 ·82396 ·83371 ·84243 ·85036 ·85757 ·86411 ·87021 ·87590 ·88120 ·88609 ·89043 ·89460 ·89843 ·90209 ·90558 ·90882 ·91186 ·91465 ·91729 ·91969
90 ·81044 ·82150 ·83126 ·84001 ·84797 ·85518 ·86172 ·86787 ·87360 ·87889 ·88376 ·88817 ·89230 ·89617 ·89988 ·90342 ·90688 ·90967 ·91248 ·91511 ·91751
95 ·80794 ·81900 ·82877 ·83753 ·84550 ·85272 ·85928 ·86542 ·87114 ·87654 ·88146 ·88588 ·89003 ·89390 ·89763 ·90119 ·90443 ·90747 ·91029 ·91290 ·91531
100 ·80548 ·81657 ·82630 ·83513 ·84038 ·85031 ·85688 ·86302 ·86879 ·87421 ·87915 ·883671 ·88769 ·89158 ·89536 ·89889 ·90215 ·90522 ·90805 ·91066 ·91310
Tem-
pera-
ture,
Fahr.
Pure
Alco-
hol.
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
5
Water.
10
Water.
15
Water.
20
Water.
25
Water.
30
Water.
35
Water.
40
Water.
45
Water.
50
Water.
Deg.
300·838960·849950·859570·868250·875850·882820·889210·895110·900540·905580·91023
35 ·83672 ·84769 ·85729 ·86587 ·87357 ·88059 ·88701 ·89294 ·89839 ·90345 ·90811
40 ·83445 ·84539 ·85507 ·86361 ·87184 ·87838 ·88481 ·89073 ·89617 ·90127 ·90596
45 ·83214 ·84310 ·85277 ·86131 ·86905 ·87613 ·88255 ·88849 ·89396 ·89909 ·90380
50 ·82977 ·84076 ·85042 ·85902 ·86676 ·87384 ·88030 ·88626 ·89174 ·89684 ·90160
55 ·82736 ·83834 ·84802 ·85664 ·86441 ·87150 ·87796 ·88393 ·88945 ·89458 ·89933
60 ·82500 ·83599 ·84568 ·85430 ·86208 ·86918 ·87569 ·88169 ·88720 ·89232 ·89707
65 ·82262 ·83362 ·84334 ·85193 ·85976 ·86686 ·87337 ·87938 ·88490 ·89006 ·89479
70 ·82023 ·83124 ·84092 ·84951 ·85736 ·86451 ·87105 ·87705 ·88254 ·88773 ·89252
75 ·81780 ·82878 ·83851 ·84710 ·85496 ·86212 ·86864 ·87466 ·88018 ·88538 ·89018
80 ·81530 ·82631 ·83603 ·84467 ·85248 ·85966 ·86622 ·87228 ·87776 ·88301 ·88781
85 ·81291 ·82396 ·83371 ·84243 ·85036 ·85757 ·86411 ·87021 ·87590 ·88120 ·88609
90 ·81044 ·82150 ·83126 ·84001 ·84797 ·85518 ·86172 ·86787 ·87360 ·87889 ·88376
95 ·80794 ·81900 ·82877 ·83753 ·84550 ·85272 ·85928 ·86542 ·87114 ·87654 ·88146
100 ·80548 ·81657 ·82630 ·83513 ·84038 ·85031 ·85688 ·86302 ·86879 ·87421 ·87915
Tem-
pera-
ture,
Fahr.
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
100
Alco-
hol
55
Water.
60
Water.
65
Water.
70
Water.
75
Water.
80
Water.
85
Water.
90
Water.
95
Water.
100
Water.
Deg.
300·914490·918470·922170·925630·928890·931910·934740·937410·939910·94222
35 ·91241 ·91640 ·92009 ·92355 ·92680 ·92986 ·93274 ·93541 ·93790 ·94025
40 ·91026 ·91428 ·91799 ·92151 ·92476 ·92783 ·93072 ·93341 ·93592 ·93827
45 ·90812 ·91211 ·91584 ·91937 ·92264 ·92570 ·92859 ·93131 ·93382 ·93621
50 ·90596 ·90997 ·91370 ·91723 ·92051 ·92358 ·92647 ·92919 ·93177 ·93419
55 ·90367 ·90768 ·91144 ·91502 ·91837 ·92145 ·92436 ·92707 ·92963 ·93208
60 ·90144 ·90549 ·90927 ·91287 ·91622 ·91933 ·92225 ·92499 ·92758 ·93002
65 ·89920 ·90328 ·90707 ·91066 ·91400 ·91715 ·92010 ·92283 ·92546 ·92794
70 ·89695 ·90104 ·90484 ·90847 ·91181 ·91493 ·91793 ·92069 ·92333 ·92580
75 ·89464 ·89872 ·90252 ·90617 ·90952 ·91270 ·91569 ·91849 ·92111 ·92364
80 ·89225 ·89639 ·90021 ·90385 ·90723 ·91046 ·91340 ·91622 ·91891 ·92142
85 ·89043 ·89460 ·89843 ·90209 ·90558 ·90882 ·91186 ·91465 ·91729 ·91969
90 ·88817 ·89230 ·89617 ·89988 ·90342 ·90688 ·90967 ·91248 ·91511 ·91751
95 ·88588 ·89003 ·89390 ·89763 ·90119 ·90443 ·90747 ·91029 ·91290 ·91531
100 ·883671 ·88769 ·89158 ·89536 ·89889 ·90215 ·90522 ·90805 ·91066 ·91310
Tem-
pera-
ture,
Fahr.
95
Alco-
hol
90
Alco-
hol
85
Alco-
hol
80
Alco-
hol
75
Alco-
hol
70
Alco-
hol
65
Alco-
hol
60
Alco-
hol
55
Alco-
hol
50
Alco-
hol
45
Alco-
hol
40
Alco-
hol
35
Alco-
hol
30
Alco-
hol
25
Alco-
hol
20
Alco-
hol
15
Alco-
hol
10
Alco-
hol
5
Alco-
hol
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
Deg.
300·944470·946750·949200·951730·954290·956810·959440·962090·964700·967190·969670·972000·974180·976350·978600·981080·984120·988040·99334
35 ·94249 ·94484 ·94734 ·94988 ·95246 ·95502 ·95772 ·96048 ·96315 ·96579 ·96840 ·97086 ·97319 ·97556 ·97801 ·98076 ·98397 ·98804 ·99344
40 ·94058 ·94295 ·94547 ·94802 ·95060 ·95328 ·95602 ·95879 ·96159 ·96434 ·96706 ·96967 ·97220 ·97472 ·97737 ·98033 ·98373 ·98795 ·99345
45 ·93860 ·94096 ·94348 ·94605 ·94871 ·95143 ·95423 ·95703 ·95993 ·96280 ·96563 ·96840 ·97110 ·97384 ·97666 ·97980 ·98338 ·98774 ·99338
50 ·93658 ·93897 ·94149 ·94414 ·94683 ·94958 ·95243 ·95534 ·95831 ·96126 ·96420 ·96708 ·96995 ·97284 ·97589 ·97920 ·98293 ·98745 ·99316
55 ·93452 ·93696 ·93948 ·94213 ·94486 ·94767 ·95057 ·95357 ·95662 ·95966 ·96272 ·96575 ·96877 ·97181 ·97500 ·97847 ·98239 ·98702 ·99284
60 ·93247 ·93493 ·93749 ·94018 ·94296 ·94579 ·94876 ·95181 ·95493 ·95804 ·96122 ·96437 ·96752 ·97074 ·97410 ·97771 ·98176 ·98654 ·99244
65 ·93040 ·93285 ·93546 ·93822 ·94099 ·94388 ·94689 ·95000 ·95318 ·95635 ·95962 ·96288 ·96620 ·96959 ·97309 ·97688 ·98106 ·98594 ·99194
70 ·92828 ·93076 ·93337 ·93616 ·93898 ·94193 ·94500 ·94813 ·95139 ·95469 ·95802 ·96143 ·96484 ·96836 ·97203 ·97596 ·98028 ·98527 ·99134
75 ·92613 ·92865 ·93132 ·93413 ·93695 ·93989 ·94301 ·94623 ·94957 ·95292 ·95638 ·95987 ·96344 ·96708 ·97086 ·97495 ·97943 ·98454 ·99066
80 ·92393 ·92646 ·92917 ·93201 ·93488 ·93785 ·94102 ·94431 ·94768 ·95111 ·95467 ·95826 ·96192 ·96568 ·96963 ·97385 ·97845 ·98367 ·98991
Tem-
pera-
ture,
Fahr.
95
Alco-
hol
90
Alco-
hol
85
Alco-
hol
80
Alco-
hol
75
Alco-
hol
70
Alco-
hol
65
Alco-
hol
60
Alco-
hol
55
Alco-
hol
50
Alco-
hol
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
Deg.
300·944470·946750·949200·951730·954290·956810·959440·962090·964700·96719
35 ·94249 ·94484 ·94734 ·94988 ·95246 ·95502 ·95772 ·96048 ·96315 ·96579
40 ·94058 ·94295 ·94547 ·94802 ·95060 ·95328 ·95602 ·95879 ·96159 ·96434
45 ·93860 ·94096 ·94348 ·94605 ·94871 ·95143 ·95423 ·95703 ·95993 ·96280
50 ·93658 ·93897 ·94149 ·94414 ·94683 ·94958 ·95243 ·95534 ·95831 ·96126
55 ·93452 ·93696 ·93948 ·94213 ·94486 ·94767 ·95057 ·95357 ·95662 ·95966
60 ·93247 ·93493 ·93749 ·94018 ·94296 ·94579 ·94876 ·95181 ·95493 ·95804
65 ·93040 ·93285 ·93546 ·93822 ·94099 ·94388 ·94689 ·95000 ·95318 ·95635
70 ·92828 ·93076 ·93337 ·93616 ·93898 ·94193 ·94500 ·94813 ·95139 ·95469
75 ·92613 ·92865 ·93132 ·93413 ·93695 ·93989 ·94301 ·94623 ·94957 ·95292
80 ·92393 ·92646 ·92917 ·93201 ·93488 ·93785 ·94102 ·94431 ·94768 ·95111
Tem-
pera-
ture,
Fahr.
45
Alco-
hol
40
Alco-
hol
35
Alco-
hol
30
Alco-
hol
25
Alco-
hol
20
Alco-
hol
15
Alco-
hol
10
Alco-
hol
5
Alco-
hol
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
100
Water.
Deg.
300·969670·972000·974180·976350·978600·981080·984120·988040·99334
35 ·96840 ·97086 ·97319 ·97556 ·97801 ·98076 ·98397 ·98804 ·99344
40 ·96706 ·96967 ·97220 ·97472 ·97737 ·98033 ·98373 ·98795 ·99345
45 ·96563 ·96840 ·97110 ·97384 ·97666 ·97980 ·98338 ·98774 ·99338
50 ·96420 ·96708 ·96995 ·97284 ·97589 ·97920 ·98293 ·98745 ·99316
55 ·96272 ·96575 ·96877 ·97181 ·97500 ·97847 ·98239 ·98702 ·99284
60 ·96122 ·96437 ·96752 ·97074 ·97410 ·97771 ·98176 ·98654 ·99244
65 ·95962 ·96288 ·96620 ·96959 ·97309 ·97688 ·98106 ·98594 ·99194
70 ·95802 ·96143 ·96484 ·96836 ·97203 ·97596 ·98028 ·98527 ·99134
75 ·95638 ·95987 ·96344 ·96708 ·97086 ·97495 ·97943 ·98454 ·99066
80 ·95467 ·95826 ·96192 ·96568 ·96963 ·97385 ·97845 ·98367 ·98991

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:—