Total Eclipse of the Sun, May 28, 1900. 345 



Discs. 



Six discs for cutting out the bright light of the inner corona were 

 erected, with the view of enabling the observers to detect the long 

 extensions if there should be any. They were very carefully set up 

 by Lieuts. Doughty and Andrews, E.N., and were provided with eye- 

 pieces having all necessary adjustments. Mr. Daniels, torpedo gunner, 

 then took charge of the party, and numerous rehearsals were given. 

 In the trials remarkable skill in recording delicate details was dis- 

 played. 



During the eclipse, the actual observer was blindfolded for five 

 minutes before totality. 



No extensions of the nature observed by Prof essor Newcomb in 1878 

 were recorded. 



Observations on tlie Stars Visible during Totality. 



A large party for the observation of stars visible during totality 

 was trained and organised by the Chaplain, Eev. G. Brooke-Eobinson, 

 E.N., who was provided with a set of star charts for purposes of in- 

 struction prior to the eclipse, and another set, prepared by Dr. Lockyer, 

 for making records during the eclipse. 



Venus became visible at a very early stage of the eclipse, and during 

 totality Mercury was a very conspicuous object near the extremity of 

 one of the streamers, a Tauri, a and y Orionis were also recorded. 

 No comet or unknown body was noted. 



Shadow Bands. 



The Naval Instructor on H.M.S. " Theseus," Mr. T. Slator, B.A., 

 undertook this branch of the eclipse work, and during the eclipse 

 worked in conjunction with the Commander, the Hon. E. F. Boyle. 

 Very complete arrangements were made for securing the orientation 

 of the bands (1) on a horizontal plane ; (2) on a plane in the meridian ; 

 (3) on a plane in the prime vertical. The bands appear to have been 

 very ill-defined, but the necessary observations were secured in planes 

 1 and 2. 



Meteorological Observations. 



A regular series of observations of temperature and pressure was 

 established three days before the eclipse, and continued until two days 

 after ; Lieut. Pattrick, E.N., taking charge of this branch of the work. 

 During the eclipse the temperature fell 5 C., and the barometer also 

 fell slightly. 



The thanks of the expedition are due especially to those named in 



