18 INTERNATIONAL ICE OBSERVATION AND ICE PATROL SERVICE. 



The following reports relative to derelicts and other floating dan- 

 gers to navigation were received and broadcasted on the dates given: 



April 1, derelict wooden hull, 75 feet long, in lat. 45° 17' N., long. 

 37° 14' W. 



April 3, floating mine, lat. 40° 18' N., long. 52° 56' W. 



April 4, whistUng buoy, lat. 40° 44' N., long. 43° 21' W. 



April 5, spar attached to wreckage, lat. 41° N., long. 50° 55' W. 



April 6, whisthng buoy, lat. 40° 26' N., long. 55° 28' W. 



Coast Guard Cutter "Seneca," Lieut. Commander A. L. Gamble, 

 Ice Patrol, First Cruise, April 16 to 30, 1922. 



The Seneca left Halifax the forenoon of April 10, to relieve the 

 Tampa on ice patrol. Communication was estabhshed with that 

 vessel in the early morning of April 16, at which time the Tam'pa was 

 searching for growlers reported by the steamship Cantigny in lat. 

 42° 02' N., long. 50° 42' W. The two vessels then steamed to 

 rendezvous on a line of bearing, checked by radio compasses, and each 

 sighted the other dead ahead, meeting at 2.30 p. m., April 16, in lat. 

 42° 09' N., long. 52° 06' W., where the Seneca took over the ice 



Eatrol duty. The Seneca then steamed ESE. for the position reported 

 y the Cantigny, stopping and drifting at dark in that position. 

 From April 10 to 15, light northerly to moderate NNE. winds pre- 

 vailed. On April 16 we had fresh NE. winds with moderate sea. 

 The weather was overcast and rainy, with light snow at the end of 

 the day. 



On April 17, the wind backed to N. The barometer rose steadily 

 to 30.37 inches and a moderate swell prevailed. At daylight, 

 steamed east on the 42d parallel, searcliing for growlers between the 

 50th and 51st meridians. The temperature of the surface water 

 of the sea was 32° F., except for a stretch of 4 miles, where it was 

 56° F. During the night, neaded to NE., swell with steerageway 

 only. Kittiwakes, terns, dovekies, and murres were sighted in the 

 cold waters passed through this date. 



April 18 began with wdnd calm. During the da)", the wind in- 

 creased to a moderate WNW. breeze, whicn backed to SW. at the 

 end of the day. Sky partly cloudy to overcast, with moderate NE. 

 swell. At daylight, the visibility being high, we started to search 

 for the growlers reported by the Cantigny on the 10th and sighted 

 two between lats. 42° 05' N. and 42° 20' N. and longs. 50° 45' W. 

 and 50° 55' W. One was a growler the size of a box freight car, 

 while the other had wasted to such an extent that it supplied barely 

 suflficient ice to fill our refrigerators. At dark we stopped and 

 drifted for the night. Fulmars, kittiwakes, murres, and petrels 

 were seen in the water during the day. The temperature of the 

 surface waters was found to be 34° F. The barometer rose slowly 

 to 30.34 inches at noon, and then fell slowly to 30.32 inches at the 

 end of the day. 



April 19 we had light to moderate variable breezes from SW. to 

 NE. by way of NW. Fog set in at 4 p. m. and prevailed during the 

 remainder of the day. Steamed ahead at daylight and stood east 

 along the 42d parallel as far as the 48th meridian, then north to 

 lat. 42° 30' N., where we stopped and drifted on account of fog. 



