DEPARTMENT OF TERRESTRIAL MAGNETISM. 303 



"For 7 days we had continuous heavy gales from the southwest, obhging 

 us to heave to for 2 days in succession, August 9 anci 10. We were thus 

 driven northward and compelled to follow very closely the Galilee's track 

 from Guam to Japan, up to the point where our various tracks intersect. 

 This was the worst spell of bad weather thus far encountered. Since August 17 

 we have had moderate weather. There have been considerable fog and cloudi- 

 ness, but we have succeeded in getting observations for declination daily with 

 four exceptions. The engine has been operated frequentl}^ for a total of 90 

 hours, during calms and for swinging ship. On August 26 the vessel was swung 

 for intensity and inclination observations, both helms. On August 27 a declina- 

 tion-swing was started, but clouds interrupted the work after 5 headings had 

 been completed. Fog was recorded on 12 days, and rain or mist on 34 days. 



"On September 20 we were becalmed off the coast of California, so the 

 engine was put into operation and we came into San Francisco under our own 

 power September 21, after a 20-hour run. We were fortunate in picking up 

 Point Reyes at 1 a. m., before the fog closed clown. From there we crept 

 through the fog until we heard the light vessel and picked up a pilot, making 

 the entrance through the fog under our own power. The total distance run 

 from Guam to San Francisco was 5,937 miles. As the time of passage was 

 46 days, the average daily run was 129 miles. The chronometers were found 

 in error only 8?7." 



As heretofore, the Carnegie's staff is indebted for special courtesies 

 shown at the ports visited and for valuable assistance rendered by 

 various persons and officials. 



The ship's personnel, during the period November 1915 to October 

 1916, was as follows: J. P. Ault, magnetician and in command of 

 vessel; Dr. H. M. W. Edmonds, magnetician and surgeon, and second 

 in command; H. F. Johnston (to April 1916), I. A. Luke, F. C. Loring 

 and B. Jones (from April 1916), observers; N. Meisenhelter, stenog- 

 rapher-recorder; R. P. Doran (until April 1916), first watch officer; A. 

 Beech (from April 1916), first watch officer; M, G. R. Savary, engineer; 

 M. Hedlund and L. Larsen, second and third watch officers, respec- 

 tively; C. Heckendorn, mechanic; 8 seamen, 2 cooks, and 2 cabin 

 boys; the complete personnel at any time consisted of 23 persons. 

 [Before the Carnegie sailed from San Francisco on November 1, 1916, 

 Observers Luke and Loring were succeeded by Observers A. D. Power 

 and L. L. Tanguy.] 



For an account of the atmospheric-electric work aboard the Carnegie, 

 see page 332. 



It was an interesting circumstance that while the Carnegie was at 

 San Francisco during October, the Galilee, chartered for the first ocean 

 magnetic work of the Department, was berthed alongside the same 

 pier for a week or more. She is now a three-masted schooner, engaged 

 in the Alaska trade. 



Tables 1, 2, and 3 contain a summary of the magnetic declinations 

 and chart corrections observed on the Carnegie from August 1915 to 

 September 1916. The chart corrections, in general, do not exceed 

 2° to 3°, however, for the Carnegie's sub-Antarctic voyage; they 

 amount to 5° and 6°, and even 12° to 16° off Southwest Australia. 



