302 CARNEGIE INSTITUTION OF WASHINGTON. 



necessary to sail close-hauled, with northeast to northwest winds. 

 Landfall was made with some difficulty on account of the heavy clouds 

 and squalls hanging over the island. Observations were carried out 

 as usual during the passage. No observations for magnetic declina- 

 tion were obtained on May 30 and June 4 on account of clouds. Con- 

 siderable lightning and thunder attended the squally weather. The 

 new gooseneck on the upper topsail yard carried away on May 27, and 

 was replaced with the extra one ordered at Lyttelton. The engine was 

 operated to get offshore when leaving Lyttelton, to clear Savage Island, 

 during a calm on June 4, and to enter the harbor of Pago Pago on 

 June 7. The time of passage was 22 days, with a daily run of 118 

 miles, for a total of 2,600 miles. 



The shore observations having been completed, the Carnegie left 

 Pago Pago on June 19, under her own power. The engine operated 

 well, taking the vessel out against a stiff head trade-wind. 



The wind was too strong outside to allow making to windward of 

 Tutuila, so the Carnegie went around the west end. The L^nion Group 

 was weathered, but the wind broke off to the north of east, compelling 

 the vessel to go to leeward of the main Phoenix Group. The wind 

 held north of east, forcing the Carnegie considerably to the westward 

 of the route planned; however, the crossings of previous tracks were 

 jnade at the points desired. No storms nor calms were encountered. 



The hot weather was very trying, but the party, with two or three 

 exceptions, kept well. Magnetic declinations were obtained twice 

 daily with two exceptions. The average difTerence, without regard to 

 sign, between the results obtained by the two observers at the col- 

 limating compass was 3' for the 51 determinations. This affords some 

 evidence as to the character of the weather and conditions encountered. 



Port Apra, Guam, was reached on Monday, July 17, 1916. The 

 total run from Pago Pago was 3,987 miles, giving a daily average of 

 147 miles for the 27 daj'^s of the trip. 



At Port Apra connection was made with the Galilee observations of 

 1907 and extensive intercomparisons of all instruments were made. 

 The Carnegie sailed from Port Apra on August 7, bound for San Fran- 

 cisco, where she arrived on September 21. The track followed was 

 arranged to cross as frequently as possible the previous tracks of the 

 Galilee and the Carnegie and to obtain additional magnetic data in 

 regions most needed. The following quotation is taken from the 

 Commander's report: 



"We left the mooring buoj^ at 1 p. m. on August 7, with our engine running, 

 and being towed by two powerful steam launches belonging to the beach 

 master. Shortly after leaving the buoy, about half-way out of the harbor, a 

 heavy squall came up from ahead and we were unable to make headway 

 against it. After some difficultj' we returned to the anchorage and dropped 

 anchor. In the meantime, in response to our signal, the Navy tug Piscataqua 

 was preparing to take us in tow. As she had moved from her anchorage to 

 our niooring buoy at 1 p. m., she already had steam up. At 3^ 50"* p. m. we 

 were safely outside the harbor and on our way. 



