SYNOPSES OF THE CARNEGIE'S CRUISES, 1909-1916. 

 CRUISE I. SEPTEMBER 1909 TO FEBRUARY 1910. 



During the period August 21 to September 10, 1909, various tests and trials of the 

 vessel were made in Long Island Sound and Gardiners Bay, and some alterations to 

 machinery were effected at New London, Connecticut; the Carnegie left the latter place 

 on September 11. The swing observations for the purpose of testing the absence of 

 observable deviations were made in Gardiners Bay from August 31 to September 2. W. J. 

 Peters, who had been in charge of the Galilee during Cruises II and III, was placed in 

 command of the Carnegie. He was assisted by J. P. Ault, magnetician; C. C. Craft, 

 surgeon and observer; E. Kidson and R. R. Tafel, observers; and D. F. Smith, chief 

 engineer. The sailing staff consisted of C. E. Littlefield, saihng master; 2 watch officers; 

 8 seamen; 1 mechanic, and 2 cooks. During the trial period of the installations on the 

 Carnegie in Long Island Sound and on the trip to St. John's, the Department was fortunate 

 in securing also the temporary services of Carl D. Smith, expert in gas engines. The 

 Director accompanied the vessel on the trip from St. John's, Newfoundland, to Falmouth, 

 England. (For views referring to Cruise I, see PI. 7, Figs. 3-5.) 



Encountering headwinds and calms, the Carnegie arrived at St. John's, Newfoundland, 

 on September 25, entering the harbor with her own power. After the completion of the 

 shore work at St. John's, the vessel left on October 2, bound for Falmouth. The passage, 

 in general, was rough, westerly gales being an almost daily experience; still the trip was 

 made in less than 12 days, the average daily run being 159 nautical miles. Magnetic 

 observations were secured on every day but one. On October 18 the vessel was swung 

 outside of Fahnouth Harbor, the results confirming those at Gardiners Bay and proving 

 most satisfactorily that non-magnetic conditions had, indeed, been secured at the various 

 positions for the instruments. The results were also in excellent agreement with those 

 derived from the Rucker and Thorpe magnetic survey of the British Isles, when referred 

 to date of observation with the aid of the records of the Fahnouth Magnetic Observatory. 

 This Observatory rendered valuable assistance in various ways. 



Both at St. John's and Fahnouth the Carnegie was visited by eminent persons. The 

 Governor and the Premier of Newfoundland made special visits, and at Falmouth official 

 visits and inspections were made by the late Sir Arthur Rucker and Professor Arthur 

 Schuster, both at the time members of the Advisory Council of the Department, as also 

 by Commander Chetwynd, superintendent of the Compass Department of the British 

 Admiralty. Special courtesies were extended to the vessel at both ports. As she left 

 St. John's, messages of farewell and of wishes for a pleasant voyage were hoisted on H. M. S. 

 Brilliant (Capt. Haworth Booth in command), and on Cabot Tower on Signal Hill, 

 above the narrow entrance to the harbor. 



The Carnegie left Falmouth, England, upon the completion of the work there, on 

 November 9, 1909, and arrived at Funchal, Madeu-a, on November 24. Owing to the 

 pronounced local disturbances at Funchal, no standardization observations were made. 

 The longest passage of the Carnegie's first cruise, viz, between Funchal and Hamilton, 

 Bermuda, was completed between December 1, 1909, and January 7, 1910, under very 

 favorable conditions for observing. The constants of the instruments were determined 

 at Agar's Island and Hunt's Island and the final passage of the first cruise to New York 

 was begun on January 28, 1910. After a very stormy trip, which proved the seaworthi- 

 ness of the vessel, the Carnegie came to dock in Brooklyn on February 17, 1910. 



Owing to the great advantage of having a vessel requiring no deviation-correction 

 whatsoever, and because of the perfection reached in the instruments themselves, it was 

 possible, for the first time, to make the results known immediately upon the conclusion 



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