3 6 4 DISCOVERY REPORTS 



seen at ranges up to three hundred yards. Density: individuals over 500 yards apart from 13.00 to 

 14.00 (i.e. dispersed over 14 miles). Large shoal at 15.00, extending for 3 miles with individuals about 

 200 yards apart. Type: all appeared to be left-handed on starboard tack. Meteorological conditions: 

 Wind from 120 , 10 knots; sea temperature 79 F. The Gulf Stream in this locality was flowing at 

 two knots. 

 This must be the first recorded occasion on which the tack of specimens has been noted at sea. 

 Observations or collections made by 'Discovery' and 'Discovery II' or members of the staff 

 travelling in other ships are recorded in Table 12. 



Table 12 



Position 



R.R.S. 



27° 15' N., 15° 32' W. 

 1 6° 19' N., 18 24' W. 



8° 06' N., if 06' W. 



7 17' N., 1 6° 19' W. 

 25° 5', S., 15° 17' W. 

 25 47' S., 14° 48' W. 



3 22' S., 32 25' W. 



35°i8'S., i9°oi' 10" W. 

 13° 01' 45" N., 21 34' 45" W. 

 34 14' S., 15 01' E. 

 34 16' S., 15° 02' E. 

 34 08' S., 29 50-2' W. 

 31 50-3' S., 32 20-5' E. 

 45 io-8' S., 146 04-6' E. 

 12 17-4' S., 13° 31-3' E. 

 io° 19' S., 09 36-4' E. 

 34 02' S., 154° 16' E. 

 42°35'N., n° 35' W. 

 4 2°02'N., i 3 °i6'W. 

 4 i ii'N., i4°34'W. 

 41 30' N., 14 17' W. 

 40 56' N., 14 53' W. 

 41 ioi'N., i4°38'W. 

 4i o 05'"N., i4°36' W. 

 41 08' N., 14 32' W. 

 28°49rN.,i3°4o£'W.| 

 28 4 9 rN. > i3 37rW./ 

 30 08' N., 15 53' W. 

 45 44J' N., io° 48' W. 



27 52' S., 33 05' E. 

 04 25' N., 02 46' W. 



04 26' N., 08 17' W. 



i5°o5'S., 29°22'W. 

 oi° 11' S., 27 17' W. 



i6°i2'S., 30 n' W. 

 n°37'S., 29° 4 o'W. 

 09 03' S., 29 22' W. 

 08° 18' S., 29 15' W. 

 07 40' S., 29 07' W. 

 04°2i'S., 28°44'\V. 

 03 47' S., 28 35' W. 



All these positions are shown in Text-fig. 



3i- 



