28 IXTERNATIONAL ICE OBSERVATION AND ICE PATROL SERVICE. 



Obstruction reports were received as follows: May 2, steamships 

 New Amsterdam and Oropesa reported red conical buoy in lat. 39° 

 42' N., long. 51° 37' W.; May 4, steamship (name not obtained) 

 reported red conical buoy with black stripes in lat. 39° 17' N., 

 long. 49° 17' W.; Maj'^ 6, steamship Plattshoro reported whistling buoy 

 in Tat. 37° 50' N., long. 49° 48' W.; May 7, steamship Lumincana 

 reported an object awash, covered with seaweed, with five visible 

 horns, believed to be a mine, in lai. 40° 26' 30" N., long. 48° 44' 

 W.; steamship El Conadado reported a Grand Bank conical buoy 

 in lat. 40° 06' 30" N., long. 49^ 21' W.; steamship Sclioon reported 

 a whistling buoy in lat. 37° 50' N., long. 49° 43' W.; May 14, steam- 

 ship \Yesttern Plains passed large piece of wreckage, 00 feet long 

 and 40 feet wide, attached to framework of wooden vessel, con- 

 necting frames and knees, projecting upward, dangerous to navi- 

 gation, in lat. 40° 44' N., long. 50° 16' W. 



During the cruise, special ice warnings were sent as follows: May 

 4, steamships Gracian, West Durfee, and Regina; May 8, steamships 

 Wurtemhurg and Aludro; May 9, steamship Eurana. 



During the cruise, 400 sea-water temperature reports and 88 ice 

 reports were received from passing steamships. 



Coast Guard Cutter "Modoc," Liuet. Commander B. M. Chis- 

 WELL, Ice Patrol, First Cruise, May 15 to 30, 1922. 



The Modoc left Halifax, Nova Scotia, at 10.25 a. m., May 13, 1922, 

 and relieved the Tampa at 4 p. m., May 15, m lat. 43° 15' N., long. 

 53° 36' W., and directed that vessel to proceed to Halifax. The 

 oceanographic and the scientific observers reported on board from the 

 Tampa. The Modoc then set course for the three bergs last seen by 

 the Tampa on the morning of May 14. 



The followuig ice reports were received May 15: Battle Harbor re- 

 ported a heavy ice jam everywhere; the steamsliip Canadian Com- 

 mander reported havmg passed a number of bergs and growlers from 

 lat. 48° 07' N., long. 47° 11' W., to lat. 47° 05' N., long. 41° 00' W.; 

 the steamsliip Minnedosa reported bergs in lat. 46° 22' N., long. 48° 

 21' W., and lat. 46° 24' N., long. 48° 00' W., and OTowlers in lat. 46° 

 13' N., long. 48° 18' W.; the steamsliip HampsteadUeath reported two 

 small bergs in lat. 46° 30' N., lon^. 52° 10' W. 



On the morning of May 16, visibility very good, we scouted the 

 SW. limits of the probable ice drift. At 2.20 p. m., we located a 

 small berg, with several small growlers, in lat. 42° 28' N., long. 51° 

 33' W. This berg had drifted 20 miles, 123°, true, since it was last 

 seen by the Tampa on the 13th. (Sec chart "F.") 



At 3 p. m., we arrived at another berg, in lat. 42° 26' N., long. 51° 

 29' W., which had drifted 2^ miles, 26°, true, since the 14th. At 4.25 

 p. m., a tliird berg, which had drifted 9^ miles, 131°, true, since the 

 14th, was found in lat. 42° 21' N., long. 51° 16' W. This berg, which 

 was about twice the size of the others sighted on tliis date, is thought 

 to have been less affected in its drift by the \vind on account of its 

 size and shape. All of these bergs were disintegrating rapidly. The 

 temperature of the air in their vicinity was 43° F. and that of the 

 sea water 38° F. A number of fulmars and small flocks of dovekies 

 were flying about in the vicuiity of the bergs. 



