34 
No. 
Stat. 
No. 
Nordlig Bredde. 
(North Latitude.) 
Længde 
fra 
Greenwich. 
( Longitude from 
Green with.) 
Dybde hvorfra Pro- 
ven hentet. 
(Depth from which the Sam- 
ples were collected.) 
Engelske ! 
Favne. Meter. 
( English (Metres.) 
Fathoms.) . | 
Tempe- 
ratur. 
Celsius. 
Xeutral- 
bunden 
Kulsyre. 
(Carbonic 
Acid forming 
Carbonates ■) 
Mgr. 
per Litre.- 
Surtbun- 
den 
Kulsyre. 
(Carbon. Acid 
forming Di- 
carbonates.) 
Mgr. 
per Litre. 
Anmærkninger. 
(Itcmarks.) 
59 
335 
76° 16'. 5 
1 4 ° 39 ' E - 
O 
0 
5-4 
53-4 
42.7 
6o 
347 
76 40.5 
7 47 
1429 
2613 
— i -3 
52.2 
41.6 
• 
6i 
347 
76 40.5 
7 47 
O 
0 
4-4 
52.6 
41.0 
6 2 
3 49 
76 30 
2 57 ** 
I487 
2719 
— i -5 
51.6 
43-5 
^3 
350 
76 26 
O 20 ) w. 
0 
0 
3-0 
54-0 
47.2 
350 
76 26 
O 20) 
300 
549 
— 1. 1 
53-2 
45-8 
65 
350 
76 26 
0 29 
300 
549 
— 1 . 1 
53-3 
46.0 
* 
66 
350 
76 26 
0 29 
1686 
3083 
— i -5 
5*-9 
43-9 
67 
35 * 
77 49-5 
0 9 
0 
0 
3-3 
5 i -9 
42.8 
* 
68 
352 
77 5 b 
3 29 E- 
0 
0 
3-9 
52.3 
4 i -5 
69 
352 
77 56 
3 29 
300 
549 
— 0.8 
52.6 
46.0 
70 
355 
78 0 
8 32 
0 
0 
4-9 
52-4 
43-2 
7 i 
355 
78 0 
8 32 
948 
1734 
— 1 .3 
51.8 
44.6 
72 
361 
79 8.5 
5 28 
0 
0 
4.2 
52-4 
42.7 
73 
361 
79 8.5 
5 28 
905 
ib 55 
— 1.2 
5 1 -9 
46.1 
74 
362 
79 59 
5 40 
0 
0 
5-2 
52.6 
43-2 
75 
362 
79 59 
5 40 
459 
839 
J.O 
5 1 -8 
44.6 
76 
363 
80 0 
8 15 
260 
475 
1. 1 
52-9 
44.0 
77 
368 
78 43 
8 .20 
3*5 
567 
1.6 
52.9 
42.4 
78 
373 
78 10 
14 26 
120 
219 
0.8 
5 * -4 
44-4 
Forsøgeuo ere nemlig ikke blevne udførte paa \ andprø- 
verno strax elter deres Optagelse men først, etterat de 
have lienstaaet i kortere eller længere Tid. Angaaende 
Tidsrommet, hvori de enkelte Vandprøver have lienstaaet 
før Bestemmelsen, kan anføres Følgende: No. 1. en Vand- 
prøve, som Hr. Dampskibsfører E. Rostrup viste mig den 
Velvillie at skaffe mig, har kun lienstaaet nogle Dage, de 
øvrige Prøver have benstaaet. No. 2 — 6 i ca. '2 l j\ Aar, 
7 — 37 i ca. I 1 Aar og 38—78 i 2 til 4 Maaneder paa 
et kjøligt Sted opbevarede paa Flasker, der vare forsynede 
med vel islebne (ilasproppe. Der aabner sig altsaa en 
Midighed for. at der ved Oxydation af de i Søvandet væ- 
rende, aldrig manglende, organiske Bestanddele kunde have 
dannet sig en mindre Qvantitet Kulsyre paa Bekostning al 
den opløste Surstofmængde, en Proces, der naturligvis kun 
har Indflydelse paa den surt bundne Kulsyre, saafremt 
ikke Oxydationen skulde skride saa vidt frem. at ogsaa 
Surstoffet i Svovlsyren skulde medgaa til Dannelsen al , 
Kulsyre, i hvilket Fald den dannede Kulsyre maatte træde 
ind som neutralbundén istedetfor den destruerede Mængde 
Svovlsyre. En saa vidt fremskreden Oxydation kan imid- 
lertid ikke tænkes mulig, medmindre man til Prop i Fla- 
skerne anvender Kork, da den i Søvandet opløste Surstof- 
gas et mere end tilstnekkelig til at oxydere alle de op- 
rindelig tilstedeværende organiske Bestanddele. Det kan 
ogsaa bemærkes. at det ikke i nogen af de undersøgte 
Y andprover har været muligt at paavise det mindste Spor 
af Svovlvandstof. For saa nogenlundé at lixere de Mæng- 
der Kulsyre, som paa denne Maade skulde kunne dannes,, 
har jeg anmodet min Ven Schmelck, som har været beskjæf- 
tiget med Undersøgelse af de faste Bestanddele i Våndet i 
det af Expeditionen befarede Hav, og som saaledes ogsaa har 
having all of it been allowed to stand over for a longer 
or shorter period. With respect to the interval that had 
elapsed before commencing the determinations, the. follow- 
ing particulars can be’ given: — No. 1. a sample of sea- 
water which Captain E. Rostrup had the kindness to procure 
me, did not stand over for more than a few days; of 
the remaining samples, Nos. 2 — .6 were . preserved for about 
two years and a quarter, Nos. 7 — 37 for about one year 
and a quarter, and Nos. 38 -78 from two to four months', 
all of them in a cool spot, and in bottles furnished with 
ground glass stoppers. Hence it is just possible that 
oxidation of the organic matter never absent in sea- 
water may have produced a small quantity of carbonic 
acid, by reducing the amount of oxygen, a process which 
of course could only affect the carbonic acid forming bi- 
carbonates, unless indeed oxidation were so far advanced, 
that the oxygen in the sulphuric acid should also contri- 
bute to the formation of carbonic acid, in which case such 
carbonic acid would reimplace the sulphuric acid decom- 
posed. But this advanced stage of oxidation is clearly im- 
possible unless the bottles are corked, since the oxygen 
in sea-water is more than sufficient to oxidize all organic 
matter originally present. 1 can also observe, that in none 
of the samples of water examined was it possible to detect 
the slightest trace of sulphuretted hydrogen. With the object 
of determining approximately what proportion of carbonic 
acid could result from this process, I requested my friend 
Mr. Schmelck — whose labours have been chiefly confined 
to the examination of the solid matter present in the water 
of the seas explored on the Expedition, and who accord- 
ingly instituted a series of experiments to ascertain the 
amount of organic substances it contained — to furnish 
