40 



clearing in the afternoon, all the anticipated drift tracks of this 

 berg were scouted without success. During the afternoon of June 27, 

 with fair visibility for 5 hours, the PontcJmrtrain searched the cold 

 water to the southwest as far west as longitude 50° W. The berg 

 was not sighted. The fog cleared in the early morning of June 28 

 over the area south and east of the tail of the Banks, and at 0410 a 

 ]3assing steamer, the Avierican Farmer^ reported a berg in latitude 

 42^17' N., longitude 50°32' W. The Pontchm'trahi located the berg 

 in that position at 0900, June 28. This was the berg last sighted on 

 June 23. At 1030, dense fog set in and the Pontchartrain drifted 

 with this berg, the southernmost ice, throughout the day and night. 



The next day, June 29, was foggy the entire day. The berg was 

 next located, when the fog cleared for several hours on June 30, 

 in latitude 41°27' N., longitude 49°30' W. This position being only 

 5 miles north of the westbound B track then in use. On July 1 and 2, 

 the visibility was moderately good during daylight hours and an 

 accurate check on the berg's drift was obtained. From June 30 to 

 July 2 it drifted at 0.9 knots in a south-southeasterly direction and 

 was located on July 2 in latitude 41°06' N., longitude 49°08' W. 

 This position was right between the eastbound and westbound lanes 

 of track B. 



The Mendota was met in vicinity of the southernmost berg at 1440, 

 July 2, in latitude 41°00' N., longitude 49°00' W. A boat was low- 

 ered and Lt. G. Van A. Graves, ice-observation officer, and the ob- 

 server's party were transferred to the Mendota and at 1515 the 

 Mendota relieved the Pontchartrain as Ice Patrol vessel. The Pont- 

 chartrain set course for Boston, Mass., arriving there at 2000, July 5, 

 1935. (See fig. 17.) 



The following is a summary of ice and water-temperature reports 

 received during the cruise: 



Number of bergs reported south of latitude 48° N 30 



Number of bergs reported south of hititude 45° N 1 



Number of ice reports received 64 



Number of water-temperature reports received 1219 



Number of vessels furnishing ice reports 44 



Number of vessels furnishing water-temperature reports 70 



Numoer of vessels furnished special information 13 



NINTH CRUISE, "MENDOTA", JULY 3 TO JULY 9, 1935 



The Mendota sailed from Boston, Mass., at 0700, Jime 29, 1935, for 

 patrol. The run from Boston to the relieving point was uneventful. 

 Light wind and sea with intermittent fog were experienced the whole 

 trip. 



The Mendota met the Pontchartrain in vicinity of the southern- 

 most berg in latitude 41°05' N., longitude 49°00' W. Lt. G. Van A. 



