[101] 



LISTS OF DREDGING STATIONS. 



973 



DREDGING STATIONS OF THE CHALLENGER IN THE AT- 

 LANTIC OCEAN, 1872 TO 1870. 



The British steamer Challenger left England for her scientific trip 

 around the world in December, 1872, and returned to England in May, 

 1S76. She was under the command of Captain Nares, aud the scientific 

 operations were under the charge of I)r. (afterward Sir) Wyville 

 Thompson. 



The serial numbers in the following table are tboseof the stations at 

 which serial temperatures, trawlings, and dredgings were obtained, not 

 those of the soundings, which had a separate numbering, running up to 

 504. This table includes only the stations in the Atlantic, and of 

 these only those at which dredgings and trawlings were made are given, 

 except from No. 22 to No. 51) (including all stations in North American 

 waters). For these all stations, which includes also all the soundings 

 made, are given, and they are placed upon the accompanying charts. 

 In the ninth column, D. signifies dredging ; T. trawling. 



Dredging stations of Challenger, 1872 to 1870. 



VII f Fell. 2 

 VII p ' 

 VIII 

 1 



3 



5 



8 



9 

 11 

 12 

 13 

 14 

 16 

 18 

 20 

 22 

 2:: 

 23a 

 23i 

 24 



Feb. 10 



Feb. 12 



Feb. 15 



Feb. 17 



Feb. 18 



Feb. 21 



Feb. 25 



Feb. '20 



Mar. 1 

 Mar. 3 

 Mar. 4 

 Mar. 5 

 Mar. 7 

 Mar. 10 

 Mar. 12 

 Mar. 14 

 Mar. 15 

 Mar. 15 

 Mar. 15 

 Mar. 25 



24a Mar. 25 



25 Mar. 26 



26 Mar. 27 



27 I Mar. 28 



32 27 CO 

 28 35 00 

 28 03 15 

 27 21 00 



25 52 00 

 25 45 00 

 24 20 00 

 23 12 00 

 23 23 00 

 22 45 00 

 21 57 00 

 21 38 CO 

 21 01 00 



20 39 00 

 19 41 00 

 18 56 00 

 18 40 00 

 18 24 00 

 18 26 00 

 18 28 00 

 18 38 30 



18 43 30 



19 41 00 



21 26 00 



22 49 00 



Longi- 

 tude. 



West. 



9 43 00 



10 05 00 

 9 14 00 

 o 39 00 

 9 14 20 

 9 14 00 

 8 12 00 

 8 23 00 



11 18 00 

 13 04 00 

 Hi 40 30 



16 05 00 



17 27 00 

 10 55 00 



19 22 00 



20 l ' 00 

 24 28 00 

 32 56 00 

 35 11 00 



40 37 00 

 43 29 00 



41 39 Oil 

 40 20 00 

 50 33 00 

 55 13 00 

 59 35 00 



03 28 00 

 63 31 L5 

 63 35 00 

 65 05 30 



65 05 00 



65 07 00 



65 10 00 



65 19 00 



Deptb 



Fath. 



1, 125 



050 



1,075 



470 



1,270 



525 



900 



000 



1,000 



1 , 525 



2, 125 

 1,500 



78 



620 



1,890 



1, 945 

 1.525 



2, 740 

 2,700 



3, 150 

 2, 575 

 2, 025 

 1,900 

 1,950 

 2, 4:i5 

 2, 050 

 2, 975 



1, 420 

 450 

 460 

 590 

 390 



625 



::. 875 



2, 800 

 2,960 



Nature of bottom. 



Line mud. 



Hard ground 



Blue mud 



Green mud.. 



Line mud 



...do 



...do 



Tempera- 

 tures. 



rto. 



Globigerina, ooze 



...do 



- do - 



Volcanic mud . .. 

 Volcanic sand. .. 

 Volcanic mud . .. 

 Globigerina, ooze 



....do 



Hard ground 



Eed clay 



. . . .do ..' 



...do 



Globigeriua, ooze 



....do 



....do 



....do 



....do 



Red clay 



...do.... 



Pteropod, ooze .. 



...do 



.. do 



...do 



...do 



....do 



Red clay 



....do... 



....do 



57 



57 

 57 

 57 

 60 

 60 

 60 

 01 



58 



60 



63 



04 



04. 5 



64.5 



67 



65 



68 



67 



69 



72.2 



73 



72 



74 



74 



74 



75 



76 



70 



76 



76 



76 



76 

 76 

 76 

 75.5 



36.8 



36.8 



37 



37 



37 



30.8 



36. 5 



36.9 



36. 8 



36.8 



30.2 



36 



36 



38.4 



D. 

 D. 

 1). 

 D. 

 D. 

 D, 

 D&T 

 T. 



T. 

 T. 



T. 

 D. 

 D. 



D 



D. 

 D. 

 D. 

 D. 

 D. 

 D. 

 D. 

 D. 

 T. 

 D. 

 D. 

 D. 

 T. 

 D. 

 D. 

 I). 

 D. 



D. 

 D. 



Locality. 



Finisterre to 

 Gibraltar. 



Do. 



Do. 



Do. 

 ■ Do. 



I >o. 



Do. 



Do. 

 Gibraltar to Ma- 



deria. 



Do. 



Do. 



Do. 

 Canary Islands. 



Do. 

 Teneriffe to Som- 



brero Island. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Off Sombrero. 



Do. 



Do. 

 St. Thomas to Ber- 

 muda. 



Do. 



Do. 



Do. 



Do. 



