142 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



NAKED-EYE VIEW. 



Hefore the begiuuiug of totality aud during its progress I liad several oi)i)ortiinities of getting 

 a naked eye view of the awe-inspiring phenomenon. As the eclipse advanced, the sky showed a 

 peculiar coloring which gradually became darker. The trees, tents, etc., were also singularly 

 tinted. 



About the time of totality a moderate number of stars ai)peared, but the darkness was not 

 so intense at any time during the eclipse as I had expected. I could see the cami) and surround- 

 ing landscape, and noticed some frigate birds sailing about in the air. My lamp seemed to throw 

 no additional light on the programme I had prepared, and I think I could have dispensed with 

 any artificial light. 



During totality the moon was surrounded by a beautiful halo of silvery light, its color remind - 

 iug me somewhat of the electric light, and shining through or over this halo were long white 

 streamers, which diverged ray-like from the edge of the moon's disc. 



The sky immediately surrounding the sun and moon was of a dusky hue, darkest toward the 

 bodies. This dark tint was disc-shaped and seemed to fade toward the outer boundary. 



During the eclipse I was assisted by Seaman Gunner Horace Yewell, of the Hartford, and 

 to his intelligent action much of the success attending my efforts is due. He also arranged the 

 guys aud lashings, and assisted in setting up the instruments. 

 Very respectfully, 



EDWAKD F. QUALTROUGH, 



Lieuienant United States Navi/. 



ADDENDUM TO THE REPORT OF LIEUTENANT QUALTROUGH, U. S. N. 



U. S. S. Hartford, 2d Rate, 



At Sea, May 23, 1883. 



j^EAR Sir: Mr. Lawranoe having expressed a desire that some additional details concerning 

 the handling of the plates should find a place in my report of the operations of the photoheliograph, 

 I take pleasure in sending them herewith. 



About forty minutes previous to totality, Mr. Lawranoe brought the photographic plates to 

 me, and remarked that he feared the six-inch plates were light-struck. I placed them under a 

 waterproof blanket at once and kept them in total darkness until used. 



Shortly before totality the clock was wound, and at ten minutes before second contact the 

 sun was brought in the center of the screen of the large instrument. One minute before second 

 contact the first plate holders were inserted, and screens were placed over the object glasses by 

 Yewell. As soon as the screeus were in i^lace I drew the slide, and, when the signal for totality 

 was given, ordered Yewell to remove the screens. 



The exposures were made according to the table given in my report. 



After the plates had been exposed they were carefully returned underneath the rubber 

 blanket, and after totality were taken charge of by Mr. Woods. 



When the oriented plates were taken by Mr. Woods about half an hour later, the sky was 



quite cloudy. 



Very respectfully, 



EDWARD F. QUALTROUGH, 



Lieutenant United States Navy, 



