[91] 



LISTS OF DKEDGING STATIONS. 



( J63 



During the season of 1877-78 the dredging operations from Decern* 

 ber to March were in charge of Prof. Alexander Agassiz, and were con- 

 ducted upon the Blake, Lieut. Commander C. D. Sigsbee, TJ. S. Navy, 

 commanding. The cruise extended from Key West to Havana, from 

 Havana westward along the north coast of Cuba, from Key West to 

 the Tortugas, thence to the northern extremity of the Yucatan Bank 

 and Alacran Beef, to Cape Catoche and across to Cape San Antonio, 

 returning to Key West, and from Key West to the Tortugas, and north- 

 ward to the mouth of the Mississippi Biver. The positions were orig- 

 inally published in the Bulletin of the Museum of Comparative Zoology 

 at Cambridge, Mass., September, 1879. In giving these positions on 

 the charts, etc., the word Ag. has been added to the numbers in the 

 bulletin so as to distinguish them from the dredgings of the U. S. Fish 

 Commission, Count Pourtales, etc. The positions from 1 Ag. to 4 Ag. 

 are taken from Sigsbee's original charts. 



Dredgings made by the Blake in 1877-'?8. 



Ug. 

 2Ag. 

 Ug. 

 4Ag. 

 5Ag. 

 6 Ag. 



9Ag. 



10 Ag. 



11 Ag. 



12 Ag. 



13 Ag. 



14 Ag. 



15 Ag. 

 1G Aii. 



17 Ag. 



18 Ag. 



19 Ag. 



20 Ag. 



21 Ag. 



22 Ag. 



23 Ag. 



24 Ag. 



25 A g. 

 20 Ag. 



27 A g. 



28 Ag. 



29 A g. 



30 Ag. 



31 Ag. 



32 Ag. 



33 Ag. 



34 Ag. 



35 Ag. 



36 Ag. 



37 Ag. 



38 A g. 



39 Ag. 



40 As;. 



41 Ag. 



42 Ag. 



Latitude 



N. 



23 14 00 

 23 14 00 

 23 31 00 



23 39 30 

 21 15 00 



24 17 30 



24 41 00 

 24 43 00 

 24 34 00 



23 18 00 

 23 14 00 

 23 11 00 

 23 01 00 

 23 or 00 

 23 03 00 

 23 02 30 

 23 02 00 

 23 01 00 

 23 01 00 

 23 02 30 



23 04 00 



24 37 30 

 24 30 00 

 24 34 00 

 24 36 00 

 24 33 00 



Longi- 

 tude. 

 W. 



82 25 CO 

 82 25 00 

 82 L6 00 

 82 14 00 

 82 13 00 

 82 09 00 



83 20 00 

 83 25 00 

 83 16 00 



82 21 00 

 S2 25 00 

 82 23 00 

 82 13 00 



82 43 30 



83 lo 30 

 83 11 oo 

 83 13 00 

 83 14 00 

 83 11 00 

 83 13 00 

 83 12 30 

 83 36 oo 



83 49 00 



84 00 00 

 84 05 00 

 84 34 00 



Depth. 



Fathoms. 



801 

 805 

 924 

 936 

 152-229 

 137 



111 



37 



37 



36 



742 



850-900 



785 



292 



320 



756 



310 



220 



287 



100 



190 



342 



635 



110 



302 



863 



955 



968 



1, 920 



95 



S l,400toj 



I 1,568 < 



400-600 



S04 



8-1 



35 



20 

 14 



1,323 

 860 

 620 

 *7and 8 Ag. 



Locality. 



North of Havana 



do 



do : 



do 



South of Marquesas Keys, Florida... 



s .do 



Only mud brought up 



Seven miles S. by W. from Sand Key. 



West of Tortugas 



do 



do 



North of Havana 



do 



do 



do 



Off Mariel, Cuba 



do 



Off' Bahia Honda, Cuba 



do 



do 



do 



do 



do 



do 



West of Tortugas 



do.......: 



.do 

 .do 

 .do 

 .do 



North part of Yucatan Bank. 

 North of Yucatan Bank 



.do 

 do 



North part of Yucatan Bank ... 



Northwest end of Alacran Reef, Yucatan Bank . . 



North part of Yucatan Bank 



Sixteen miles north of Jolbos Islands, southwest 

 part of Yucatan Bank. 



Northwest of Cuba 



do 



do .'"'.'"'. 



Tempera- 

 tures. 



73 



77 

 78J 



77A 



1 1 3 



70 



39J 

 B9J 

 392 

 39jj 



55J 



55£ 



504 

 40 



71 



64 



50 

 40£ 

 58| 

 44| 



39i 

 30* 



ilOl 

 40£ 

 60 



flu 600 fathoms. 



40 



39i 



39j 



