[101] 



LISTS OF DREDama STATIOISS. 



973 



DREDGING STATIONS OF THE CHALLENGER IN THE AT- 

 LANTIC OCEAN, 1872 TO 1876. 



The British steamer Challenger left England for her scientific trip 

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

 1876. She was under the command of Captain Nares, and the scientific 

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

 Thompson. 



The serial numbers in the following table are those of the stations at 

 which serial temperatures, traw lings, 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. 59 (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 j T. trawling. 



Dredging stations of Challenger, 1872 to 1876. 



Ic 

 Id 

 II 

 II a 

 II A; 



III 



IV 

 V 



Date. 



1872. 

 Dec. 80 



VI 

 VII 



Vll/ 



1873. 



Jan. 1 



Jan. 2 



Jan. 13 



Jan. 13 



Jan. 15 



Jan. 15 



Jan. 16 



Jan. 28 



Latitude. 



Jan. 30 

 Jan. 31 

 Feb. 2 

 Vllpi Feb. 10 

 VIII Feb. 12 

 1 Feb. 15 



North. 



o / // 



41 58 00 



I 40 23 00 

 39 55 00 



i 38 10 00 



! fi8 05 00 

 36 58 50 



j 37 02 00 

 36 25 00 



I 35 47 00 



' 36 23 00 



35 20 00 ! 

 ; 32 27 CO 

 ) 28 35 00 

 j 28 03 15 

 i 27 24 00 



Longi- 

 tude. 



Feb. 17 

 Feb. 18 

 Feb. 21 

 Feb. 25 

 Feb. 26 

 Mar. 1 

 Mar. 3 

 Mar. 4 

 Mar. 5 

 Mar. 7 

 Mar. 10 

 Mar. 12 

 Mar. 14 



23 Mar. 15 



23a 



Mar. 



15 



23/> 



Mar. 



15 



24 



Mar. 



25 



24a 



Mar. 



25 



25 



Mar. 



26 



26 



Mar. 



27 



27 



Mar. 



28 



25 52 00 

 25 45 00 

 24 20 00 

 23 12 00 

 23 23 00 

 22 45 00 

 21 o7 00 

 21 38 10 

 21 01 00 

 20 39 00 

 19 41 00 

 18 56 00 

 18 40 00 

 18 24 00 

 18 20 00 

 18 28 00 

 18 38 30 



West. 



O I II 



9 42 00 



9 43 00 



10 05 00 

 9 14 00 

 9 39 00 

 9 14 20 

 9 14 00 

 8 12 00 

 8 23 00 



11 18 00 

 13 04 00 

 16 40 30 



16 05 00 



17 27 00 

 16 55 00 



19 22 00 



20 14 00 

 24 28 00 

 32 56 00 

 35 11 00 

 40 37 00 



43 29 00 



44 39 00 

 46 29 00 

 50 33 00 

 .'•i5 13 ( 

 59 35 00 



62 56 00 



63 28 00 

 63 31 15 

 63 35 00 

 65 05 30 



18 43 30 I 65 05 00 



19 41 00 ' 65 07 00 



21 26 00 I 65 16 00 



22 49 00 65 19 00 



Depth. 



Fath. 

 1,125 



950 



1,975 



470 



1,270 



525 



900 



600 



1,090 



1,525 

 2,125 

 1,500 

 78 

 620 

 1,890 



1,945 

 1,525 

 2, 710 

 2.700 

 3,150 

 2, 575 

 2,025 

 1.9U0 

 1,950 

 2,435 

 2, 650 

 2, 975 

 1,420 

 450 

 460 

 590 



625 

 3, 875 

 2, 8it0 

 2.960 



Nature of bottom. 



Blue mud . 



Hard ground 



Blue mud 



Green mud 



Blue mud 



...do 



...do 



do 



Globigerina, ooze 



...do 



-do , 



Volcanic mud ... 

 Volcanic sand... 

 V(dcauic mud . . . 

 Globigerina, ooze 



...do 



Hard ground 



Eed clay 



.-do 



.. do 



Globigerina, ooze 



...do 



...do 



..do 



...do 



Eed clay 



...do 



PteropotI, ooze .. 



do 



.. do 



.-do 



...do 



...do.-.. 

 Red clay 

 --.do — 

 ...do.... 



Tempera- 

 tures. 



57 

 57 

 57 

 57 

 60 

 60 

 60 

 61 



58 



60 



63 



64 



64.5 



64.5 



67 



65 



68 



67 



69 



72.2 



73 



72 



74 



74 



74 



75 



76 



76 



76 



76 



76 



76 

 76 

 76 

 75.5 



38.5 

 36 



36.8 



37 



37 



37 



36.8 



36.5 



36.9 



36.8 



36.8 



36.2 



36 



36 



38.4 



36.2 



D. 

 D. 

 D. 

 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. 

 D. 

 D. 



D. 

 D. 



Locality. 



to Ma- 



Cape Finisterre to 

 Gibraltar. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Gibraltar 



deria. 



Do, 



Do. 



Do. 

 Canary Islandd. 



Do. 

 Teneriffe to Som- 

 brero Island. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



1)0. 



Off Sombrero. 



Do. 



Do. 

 St. Thomas to Ber- 

 muda. 



Do. 



Do. 



Do. 



Do. 



