154 



Ocean Magnetic Observations, 1905-16 



Summary of Passages for Cruise III of the Galilee. 

 Table 44. 



Passage 



Length of 

 passage 



San Diego to Nukahiva. 



Nukahiva to Tahiti 



Tahiti to Apia 



Apia to Yap 



Yap to Shanghai 



Shanghai to Sitka 



Sitka to Honolulu 



Honolulu to Jaluit 



Jaluit to Port Lyttelton . 

 Port Lyttelton to Callao 

 Callao to San Francisco. 



Total 



miles 

 3,220 

 772 

 1,352 

 3,454 

 1,734 

 5,507 

 2,708 

 2,728 

 3,436 

 6,301 

 5,765 



Time of 

 passage 



36,977 



days 

 26.7 

 7.3 

 12.1 

 30.1 

 15.1 

 41.2 

 18.3 

 23.8 

 43.1 

 54.3 

 46.1 



Average 

 day's run 



318.1 



miles 

 121 

 106 

 112 

 115 

 115 

 134 

 148 

 115 

 80 

 116 

 125 



116 



Summary of Passages for all Cruises of the Galilee, 1905-1908. 



Table 45. 



The total number of days the Galilee was in commission durmg the period August 1, 

 1905 to May 31, 1908, is 1,035. Since 554 days were spent at sea, the remaming days 481, 

 are to be ascribed to the tune consumed at portsin swings of vessel, shore observations, 

 computations, alterations and repairs, and outfitting. 



AUXILIARY OBSERVATIONS ON THE GALILEE. 



Besides observations in terrestrial magnetism, the work aboard the GaUlee, as far as 

 time and conditions would permit, included atmospheric electricity dunng the second half 

 of Cruise IIL The results of the latter work wiU be found in the special report on results 

 in atmospheric electricity (see pp. 364-366). ^ , ^ , • ^f.„„f;«n K^r 



Observations were also made to determine the amount of atmospheric refraction by 

 measuring the dip of the horizon with the dip-of-horizon measurer (^Kunmtiefenmesser), 

 made by Carl Zeiss, of Jena. A future special report wiU deal with this subject. 



Meteorological observations have been made to the foUowing extent: While at sea 

 notes of the direction and force of wind were made at intervals of 4 hours. At the same 

 tune temperatures of the sea-surface and the air were recorded with readmgs of the wet- 

 bulb themiometer. In addition to these usual meteorological notes ^P^ ,t -fJ^ T. 

 were made at Greenwich mean noon according to the forms prepared by the United States 

 Weather Bureau for observations at sea. The ship's aneroids were controUed by port 

 comparisons with standard barometers whenever opportumty afforded. 



The Greenwich-mean-noon meteorological observations, together with notes on alhed 

 phenomena (storms, polar Ughts, unusual meteorological events, etc.), have been regul^ y 

 transmitted to the United States Weather Bureau for discussion along with the ocean data 

 received by that Bureau from other sources. 



