8 



pletely over on one side. We remained near the berg throughout the 

 day and the following night. 



During the night no change occurred in the appearance of the berg, 

 but at 8.30 o'clock the next morning, it suddenly split from the peak 

 down through the center, forming two bergs and several growlers. 

 The two bergs thus formed drifted apart. We followed one south- 

 ward until it broke up entirely on the night of June 3 while we stood 

 by. It had been gradually disintegrating from the rather high tem- 

 perature of the air and the sea and from being continually washed by 

 a heavy swell that was rolling in from the eastward. At daybreak we 

 cruised about seven miles northeastward and located the remaining 

 berg of the former pair. 



At 4 a. m. on June 5 we left the berg in latitude 46° 32' N., longitude 

 52° 47' W. It had drifted 48 miles 229 degrees true from the position 

 in which it was first found by the General Greene on May 31. We 

 proceeded to St. John's, Newfoundland, for fuel, water, and supplies, 

 preparatory to making contact with the U. S. Coast Guard cutter 

 Ponchartrain. We docked at Job's Wharf at 12.40 p. m. on June 5, 

 1931. 



The General Greene left St. John's, Newfoundland, at 9.40 a. m. on 

 June 9 and set a course for the Grand Banks. While backing out from 

 Job's Wharf, trouble developed in the port clutch which prohibited the 

 use of the port engine. However, we proceeded on the starboard 

 motor to 44° 32' N., 51° 00' W. There contact was made with the 

 Ponchartrain at 2 p. m. on June 10. The crew received pay for the 

 months of March, April, and May, and several changes in the per- 

 sonnel of the General Greene were effected. We left the Ponchartrain 

 at 12.45 a. m. June 11 and headed for St. John's where we docked at 

 6.20 p. m. the next day for repairs to the machinery. 



Between June 5 and June 12 one ice report was received from Cape 

 Race radio station, that of a small berg reported in latitude 46° 12' N. 

 longitude 53° 29' W. on June 10. This was doubtless the same berg 

 we left on June 5. A total of 1,703 miles was run during the fourth 

 cruise period. 



Temperature reports to the number of 321 were received from ships, 

 and surface temperatures were taken every hour from the General 

 Greene. These data and the track of the General Greene have been 

 plotted on the chart, isotherms drawn in the usual way, see Figure 25. 



FIFTH CRUISE (THE SOUTHERN OCEANOGRAPHIC CRUISE), JUNE 



19-29, 1931 



The General Greene left St. John's, Newfoundland, at 3.30 p. m. 

 on June 19, 1931, as soon as repairs to the port clutch had been com- 

 pleted. Courses were run east-northeastward to about 60 miles north 

 of Flemish Cap, and thence the vessel was worked southsouthwest- 



