264 THE VOYAGE OF H.M.S. CHALLENGER. STATION 72

Sir C. Wyville Thomson and John Murray, A Summary of the Scientific Results of the Voyage of H.M.S. Challenger (1895)
THE VOYAGE OF H.M.S. CHALLENGER.
264
Temperature of water :-
STATION 72.
Surface, .
25 fathoms,
50
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75
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100
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200
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300
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400
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710
642
634
626
618
57.7
52
480
500 fathoms,
600
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700
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800
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900
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1000
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1100
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Bottom,
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.452
.432
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413
400
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392
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385
381
.
.378
Density at 600 F. at surface, 102718.
8159 per cent. o
Depth, 1240 fathoms; deposit, Pteropod Ooze, containing
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.).
At 4.30 i'.i.
got up steam to sound.
Obtained a series of temperatures down to 1100 fathoms.
At 4 P.M. shortened and furled sails, and
sounded in 1240 fathoms.
At 6.30 P.M. completed observations, and at 6.40 P.M. made all plain sail.
Distance from Fayal at noon, 210 miles, and from Flores, 114 miles.
http://19thcenturyscience.org/HMSC/HMSC-Reports/1895-Summary/README.htm
miles.
ORGANISM FROM
THE DEPOSIT.
Amount of current 15 miles, direction N. 57° E.
DIAToMAc.--The following species of Diatoms were observed by Mr. Comber in the
deposit from this Station, and shells of Tellina are recorded in the Station-book (see also
Murray and Renard, Deep-Sea Deposits Chali. Exp.) :Nilzschia marina, Grunow.
Grammatoph ora sepenlina, Ehrenberg.
Hemidiscus cunefonnis, Wallich.
Coscinocliscus excentriens, Ehrenberg.
lineatas, Ehrenberg.
luinidus, Janiseh.
curvatulus, Grunow.
,,
STATION 73.
Made good 73
Station
73 (Sounding
137),
Diagram 3).
CoscinocUscus nodulifer, Janisch.
decrescens, Gruuow.
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radialus, Ehrenberg.
,,
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afriranus, Janisch.
Eihmodisczis sp. (?).
Aste'ronzph a/us broo/cei, Bailey.
Bacteriastrum t'arians, Lauder.
Bermuda to Azores (see
Charts
6
and
June 30, 1873 ; lat. 38° 30' N., long. 31° 14' W.
Temperature of air at noon, 68°8 ; mean for the day, 68°5.
Temperature of water :Surface, .
100 fathoms,
200
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300
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400
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600
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690
598
570
54
49.
45.5
600 fathoms,
700
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800
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900
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Bottom,
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43'4
420
410
400
394
10,
and
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