There were remarkably few bergs off the eastern edge of the Grand 

 Banks. This failure of berg supply, as much as anything else, caused 

 the extraordinarily ice-free conditions that were enjoyed south of the 

 forty-sixth parallel throughout the remainder of the season. 



THE SEVENTH CRUISE, "MOJAVE," MAY 24-JUNE 7 



See Figure 9 for the surface isotherm and the iceberg conditions 

 that prevailed during the seventh cruise. The southeasternmost 

 bergs melted early in this last 1930 cruise of the Mojave. After May 

 29 no ice was sighted or reported south of the region of the Cape Race, 

 or "F" steamship tracks. During good visibility the Mojave carried 

 out search for ice up to latitude 47° 40' N., in the cold current off the 

 eastern edge of the Grand Banks, but could locate no bergs or growlers. 



THE EIGHTH CRUISE, "MODOC," JUNE 7-13 



See Figure 10 for surface isotherm and iceberg condition prevailing 

 during the 8th cruise. The Modoc searched a large area between the 

 westbound "B" tracks and the Tail of the Banks, but found no ice. 

 The only reports of ice received were from vessels on the Cape Race, 

 or "F" tracks. On the evening of June 10 the ice patrol was dis- 

 continued in obedience to a radiogram from Coast Guard head- 

 quarters. The Modoc arrived at Boston, Mass., on June 15, 1930. 



