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Til Sammenligning hidsættes lier de af Ekman fundne
Værdier for Volumet af 4 Vandprøver A, B, C og D af
respective Egenvægter ved 1.01603, 1.01982, 1.02306,
og 1.02695.
t° Vt af A Vt af B Vt af C Vt af D
—5 i.000145 1.000061 0.99998 3 0.999902
—4 1.000087 1.000020 0.999959 0.999894 ’
3 1.000044 0.999994 0.999948 0.999904
—2 i .000015 0.999983 0999953 0.999922
— I i.000001 0.999985 0.999969 0-999955
0 i.000000 i.000000 i .000000 i.000000
I i.000019 1.000035 1.000043 1.000062
2 1.000047 1.000083 i.000100 1.000136
3 1.000096 i.000142 i.000168 1.000220
4 i.000154 1.000213 1.000249 1.000315
5 1.000223 1.000296 1.000344 1.000421
6 1.000305 1.000390 1.000450 1.000537
7 1.000399 1.000495 i .000567 1.000664
8 1.000504 1.000612 1.000696 i.000801
9 1.000621 1.000739 1.000836 1.000948
IO 1.000749 1.000877 1.000985 i.001104
11 1.000888 1.001026 1.001145 i.001272
12 1.001038 i.001185 1-001315 i.001449
13 i.001199 1.001354 i.001495 1.001635
14 i.001370 I-OOI533 1.001683 1.001831
15 1-001551 i.001719 i.001880 1.002038
i6 i.001742 i.001925 1.002085 1.002250
17 1.001943 1.002134 1.002299 1.002473
i8 1.002153 1-002353 1.002520 1.002705
19 1002373 1.002582 1.002749 1.002946
2 O 1.002601 1.002819 1.002984 1.003195
2 I 1.002839 1.003002 1.003227 i 003453
22 1.003085 1.003321 1.003474 1.003719
23 1.003340 1.003588 1.003728 1.003993
24 1.003602 1.003861 1.003988 1.004275
25 1.003875 i.004144 1.004253 1.004565
For den af mig undersøgte Vandprøve I er efter de
forhen beskrevne Observationer fundet Egenvægten 1.02691
ved !3’ ’- eller 1.02707 reduceret til [’? . medens Ekman
l<.°o lo"
for Vandprøven D har fundet Egenvægten 1.02695 ved
15°
, - . og det fremgaar saaledes, at Undersøgelserne for disse
lo0
Vandprøvers Vedkommende meget godt kunne gjøres til
Gjenstand for Sammenligning. En saadan Sammenligning
viser let, at der paa alle Puncter selv for Temperaturerne
under 0° existerer en tilfredsstillende Overensstemmelse,
idet Differentserne i Regelen ikke overstige 0.00001 og
folde høiere Temperaturer, hvor de antage sin største Værdi,
kun gaa op til omtrent 0.000025, en Uoverensstemmelse,
som, naar Hensyn tages til Forskjellen mellem
Vandprøvernes Egenvægter, end yderligere kan reduceres. Med de
ovenfor nævnte af andre Chemikere udførte Undersøgelser
For comparison with these figures, are annexed the
values found by Ekman for the volume of 4 samples of
sea-water, A, B, C, and D, their specific gravity at j"?
being respectively 1.01603, 1.01982, 1.02306, and 1.02695.
t° Vt of A Vc of B Vc of C Vt of D
—5 i.000145 i.000061 0.99998 3 0.99990 2
—4 1.000087 1.000020 0.999959 0.999894
—3 1.000044 0.999994 0.999948 0.999904
—2 i.000015 0.999983 0-999953 0.999922
— i i .000001 0.999985 0.999969 0.999955
0 i .000000 i.000000 i.000000 i.000000
i i.000019 1.000035 1.000043 1.000062
2 1.000047 1.000083 i.000100 1.000136
3 1.000096 i.000142 i.000168 1.000220
4 i.000154 1.000213 1.000249 1.000315
5 1.000223 1.0002.96 1.000344 1.000421
6 1.000305 1.000390 1.000450 1.000537
7 1.000399 1.000495 1.000567 1.000664
8 1.000504 1.000612 1.000696 i.000801
9 1.000621 1.000739 1.000836 i .000948
10 1.000749 1.000877 1.000985 I.OOI 104
11 1.000888 1.001026 1.001145 1.001272
12 1.001038 I.OOI 185 1-001315 i.001449
13 I.OOI 199 1.001354 i.001495 1.001635
14 1.001370 I.OOI533 1.001683 • 1.001831
15 1-001551 1.001719 i.001880 1.002038
16 i.0017 42 i.001925 1.002085 1.002250
17 i.001943 1.002134 1.002299 1.002473
18 1.002153 1.002353 1.002520 1.002705
19 1.00237.3 1.002582 1.002749 1.002946
20 1.002601 1.002819 1.002984 1.003195
21 1.002839 1.003062 1.003227 1-003453
22 1.003085 i .003321 1.003474 1.003719
23 1.003340 1.003588 1.003728 1.003993
24 1.003602 1.003861 1.003988 1.004275
25 1.003875 i.004144 1.004253 1.004565
According to the observations previously described
17.°5
the specific gravity of sample I, was, at 1.02691, or,
reduced to Jv . 1.02707, and Ekman found the specific
lo°
15°
eravity of sample D to be 1.02695 at ,. . Hence the re-
lo°
suits, so far at least as these samples are concerned, very
well admit of being compared; satisfactory agreement exists
even for temperatures below 0°, since the difference does
not as a rule exceed 0.00001. and for the highest
temperatures, at which it is greatest, it amounts to only
0.000025; nay, these figures may be still further reduced
by taking into account the specific gravities of the samples.
With the results of the above-mentioned observations
instituted by other chemists, those here described agree
but indifferently. According to the formula deduced by
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