12 Ocean Magnetic Observations, 1905-16 



16,286 nautical miles. The closing shore observations were next made and the vessel was 

 swung on October 22, 1906. Tluoughout the cruise magnetic observations were made as 

 frequently as the weather and sea conditions permitted. For further information see 

 abstract of log (pp. 143-146). 



CRUISE III, DECEMBER 1906 TO MAY 1908. 



Between November 1 and December 22, 1906, various shore observations, harbor 

 swings, and investigations were made at San Diego and the vessel was overhauled and out- 

 fitted preparatory to her third cruise. During November 16-22, Mr. Peters conferred with 

 the Director at Wasliington, and received final instructions for the forthcoming cruise. 

 December 22 the Galilee set sail from San Diego and entered upon "Cruise III," the 

 scientific party consisting of the following persons: W. J. Peters, in conunand; Observers 

 J. C. Pearson and D. C. Sowers; and Dr. G. Peterson, surgeon and recorder. Captain J. T. 

 Hayes, as heretofore, was sailing-master. Mr. Pearson was reUeved by Observer P. H. Dike 

 at Sitka, Alaska, July 31, 1907. (See Plate 2, Figs. 1 and 2.) 



The port of Nukahiva, Marquesas Islands, was reached on January 18, 1907. No 

 harbor swing of the vessel being possible here, the Galilee, upon completion of the shore 

 work, proceeded on January 24 to Tahiti, arriving there January 31. Durmg a stay of 

 19 days at this port, harbor swings and land observations were carried out in detail. The 

 next stop was made at Apia, Samoan Islands, where, between March 3 and 14, various 

 standardizations and comparisons of instruments were made at the Apia Geophysical 

 Observatory. This was the second time that these highly essential observations and checks 

 on the instnmiental constants of the ship had been obtained at this important observatory. 

 The observer-in-charge. Dr. G. Angenheister, as well as the retiring observer-in-charge. 

 Dr. F. Linke, rendered the Galilee all necessary assistance, hereby gratefully acknowledged. 

 Harbor swings of the Galilee, however, could not be attempted at this port. 



Leaving Apia March 14, Yap Island was made on April 14. Here various observations 

 consumed 9 days. SaiUng from Yap Island April 23, Shanghai was reached on May 8, 

 where the principal stop was made. Comparisons of the Galilee instruments were made 

 with the standard msti-uments of the Zikawei Observatory, Father J. de Moidrey, S. J., 

 in charge of the magnetic work, furnishmg every facihty possible, for which our hearty 

 thanks are due. Swings of vessel, on account of high tides and absence of motive power on 

 the Galilee, could not be made here in port, but had to be undertaken directly after leaving 

 Shanghai on May 31, in the mouth of the Yangtse River, where they were secured with 

 great difficulty and delaying the vessel until June 4. 



From Shanghai Mr. Peters was dkected to proceed due east towards Midway, putting 

 in there, if conditions did not make the entry to the hai-bor hazardous with a sailmg 

 vessel, and from thence to make Sitka, in order to cover this passage during as favorable 

 a part of the year as possible. Tempestuous weather, however, was encountered on akiiost 

 the entire trip, blowing the vessel out of her set course, preventmg swmgs, and rendering 

 impossible magnetic-declination observations because of absence of sun or stars, so that the 

 course and program of work outhned could be followed only approximately. For about 

 750 nautical miles from Shanghai the course was practically the same as that of the 

 Challenger, and no landing on Midway Island could be safely attempted. After following 

 an easterly course in general to longitude 181 ?5 east, latitude 37° north, course was laid 

 directly for Sitka, the Galilee entering this harbor July 14, 1907, and being swimg on July 

 16 to 19. In spite of the bad weather, the trip from Shanghai of 5,507 nautical miles was 

 made in 41 days, averaging about 134 nautical miles per day. 



The Director met the Galilee at Sitka on July 28, inspected the work and mstrumental 

 outfits, and discussed with the commander the future work. Two new instruments were 

 introduced in the work, viz, the newly received and improved sea dip-circle 189, and a 



