[91] 



LISTS OF DREDGING STATIOKS. 



063 



During tlie season of 1877-'78 the dredging operations from Decem- 

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

 ducted upon the Blalce, Lieut. Commander 0. D. Sigsbee, U. 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 Eeef, 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 Mississii)pi Kiver. The i)ositions 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. hfts 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 A g. to 4 Ag. 

 are taken from Sigsbee's original charts. 



Dredgings made by the Blake in 1877-'78. 



1 



a 



Latitude 



N. 



Longi- 

 tude. 

 W. 



Depth. 



Locality. 



Tempera- 

 tures. 



1 



Is 



1 



6 



s 



o 

 o 



1 Ag. 



O / " 



23 14 00 

 23 14 00 

 23 31 00 



23 39 30 



24 15 00 

 24 17 30 



82 25 CO 

 82 25 00 

 82 16 00 

 82 14 00 

 82 13 00 

 82 09 00 



Fathoms. 

 801 

 805 

 924 

 936 

 152-229 

 137 





O 



73 



77 



76 







39| 



2Ag. 

 3Ag. 



. do . .. 



39a 

 39a 

 89J 



m 



do 



4 Ag. 



do 



5Ag. 





6 Ag. 



do , .. 



*" 









9Ag. 



10 a|. 







111 



. 37 



37 



36 



742 



850-900 



785 



292 



320 



756 



310 



220 



287 



100 



190 



342 



635 



HO 



392 



803 



955 



968 



1, 920 



95 



5 l,400to> 



} 1, 568 5 



' 400-600 



804 



84 



35 



2(» 



14 



1,323 

 860 

 620 



Seven niilea S. by W. from Sand K.ey 



70 



55i 



24 44 00 

 24 43 00 

 24 34 00 



23'i8 00 

 23 14 00 

 23 11 00 

 23 04 00 

 23 07 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 

 24 33 00 



23 32 00 



24 01 00 



23 52 00 

 23 52 00 

 23 13 00 



83 26 00 

 8'} 25 00 

 83 16 00 



West of Tortugas 



llAg. 



do 







12 Ag. 



do 







13 Ag. 



14 Ag. 



North of Havana 







82 21 00 

 82 25 00 

 82 23 00 



82 43 00 

 HJ 43 30 



83 10 3U 

 83 11 00 

 83 13 00 

 83 14 00 

 83 14 00 

 83 13 00 

 83 12 30 

 83 36 00 



83 49 00 



84 00 00 

 84 05 00 

 84 34 00 

 84 23 00 

 88 05 00 



88 58 00 



88 56 00 



88 58 00 



89 10 00 



do 







15Ag. 



do 







16 Ag. 



do 



77 

 76 

 76 

 7-5 

 76 



55.J 



40 



17 Ag. 



18 Ag. 



Oiof Mariel, Cuba 



do 



19 Ag. 



Off Bahia Honda, Cuba ,. 



52i 



02 



20 Ag. 



...do 



21 Ag. 



do 





22 Ag. 



do 



77 

 77 

 78 

 78 

 72 

 73 

 75 



71 



23 Ag. 



..do . .. 



64 



24 Ag. 



do 



50 



25 Ag. 



do 



40§ 

 58i 

 444 

 39^ 



•m 

 39. 



39i 



26 A.g. 



AVest of Tortuo-as 



27 Ag. 



do 



28 Ag. 



.::.:.do....:: :: ;.:::::..::::::::::::: 



29 A ^. 



do 



30 Ag. 



do •. 





31 Ag. 



do 





32 Ag. 



North part of Yucatan Bank 





33 Ag. 



North of Yucatan Banli 



72i 



81 

 78 

 74 



40^ 



UOh, 

 4()i- 

 60 



34 Ag. 



do 



35 Ag. 



do 



36 Ag. 



North part of Yiif atan Bank 



37 Ag. 



38 A g. 



North vvi'st etui of Alitcriu Ri'ef Yucatan Bank 





23 10 00 



88 35 00 



Nortli part of Yucatan Biuk ..'.... 



Sixteen uiil«>,s north ol Jolbos Islands, southwest 



part of Yucatan Bank. 

 Northwest of Cuba 







39 Ag. 







40 Ag. 



23 26 00 

 23 42 00 

 23 53 00. 



84 02 00 

 83 13 00 

 83 04 30 



77 

 73 



40 



41 Ag. 



do 



39i 

 39i 



42 Ag. 



do 



'7 and 8 A; 



tin 600 fathoms. 



