BIGELOW : THE " GRAMPUS " IN THE GULF STREAM. 197 



Tanner closing net of improved pattern, a Petersen closing net, the 

 Monaco trap, and the usual complement of dip-nets and small surface 

 tow nets. For sounding a hand Tanner machine was installed. 

 Deep-sea thermometers were loaned by the Bureau of Fisheries. 



Capt. G. F. 0. Hanson, commanding, and the officers and crew 

 were indefatigable in their attention to the work of the Cruise. Drs. L. 

 J. Cole and J. L. Bremer accompanied me on the trip and kindly assisted 

 in the care of the collections. 



The "Grampus" set sail from Gloucester Harbor on the afternoon of 

 July 7. On the following day we anchored in Vineyard Haven to take 

 on board some apparatus from the Station of the Bui-eau of Fisheries at 

 Woods Hole, getting under way again that evening. We purposed to 

 make our first trial of the Monaco trap on the continental slope, near 

 the inner edge of the Gulf Stream, and accordingly on July 9 soundings 

 were taken at 2 p. m. in 70 fathoms and in 200 fathoms, to develop the 

 slope. A third sounding a few miles further south showed 260 fathoms 

 and the trap was set in about 300 fathoms. While the set was in 

 progress an intermediate haul with the five-foot open net was made. From 

 the Station, lat. 39^ 49' N., long. 70° 16' W., we ran our first leg in a 

 south-southeasterly direction for about 80 miles, to lat. 38° 33', long. 

 70° 08' (Station 6), thus making a representative section of the northern 

 part of the Stream. On this run three intermediate hauls were made. 

 Our second leg was run from this point on a northwesterly course, for 

 about 120 mile§, to Station 10 (lat. 39° 36', long. 72° 15'), with three 

 intermediate hauls. Near this point, being once more over the edge of 

 the continental slope, we planned to make a second set of the Monaco 

 trap. Accordingly, after sounding in 51, 300, 200, and 190 fathoms, 

 the trap was set on July 12, lat. 39° 54', long. 70° 44', in 455 fathoms, 

 the bottom at tliat point being green mud with a few Globigerinae. 

 During this set, as at Station 3, an intermediate haul was made. From 

 this Station our third leg was run in a northeasterly direction parallel 

 to the continental slope, along the inner edge of the Stream until we 

 intersected leg 1, near Station 3, a distance of about 90 miles, during 

 which one intermediate haul was made. On the completion of this leg 

 the work in the Stream proper was completed, the triangle thus executed 

 having given us a survey of a typical region. However, in order to 

 compare the pelagic fauna of the cold water over Nantucket shoals with 

 that of the warm waters of the Stream, w^ork was prosecuted on the 

 homeward trip over the shoals and around Cape Cod, hauls being made 

 in regions where the surface temperatures were 64° and 65°, respec- 

 tively. 



