SOLAE ECLIPSE OF MAY 28, 1900. 153 



DURING TOTALITY. 



The attention of all visual observers was at once caught by the equa- 

 torial streamers. Father Woodman's comparison of the appearance to 

 a structure of mother-of-pearl was generally recognized as good, but 

 different observers differed on the color estimate. A yellowish-green 

 tinge was noticed by the artist of the party, Mr. Child, while to others 

 the light was straw-colored or golden. 



The general coronal form, to the naked eye, was nearly that of the 

 small annexed photograph, which, though taken by one of the smaller 

 objectives, gives a good view of the relative intensities. The same 

 extensions of the equatorial corona could be followed by the naked eye 

 from 3 to 3^ solar diameters. 



The visual telescopic observations of tue writer gave little indication 

 of the linely divided structure of the inner corona which he had noticed 

 at Pikes Peak. Structure, to be sure, was evident, ))ut not in such 

 minute subdivision as had then been seen, and though one remarkable 

 prominence as well as several smaller ones was visible, the coronal 

 streamers did not give to the writer the impression of being connected 

 with these prominences, though the relationship of some of them to 

 the solar poles was abundantly manifest. 



AFTER TOTALITY — RESULTS. 



Comparing notes after totality, all observers reported a successful 

 carrying out of the programme. The greatest interest centers in the 

 dirc'-t coronal negatives taken with the 135-foot telescope. Mr. Smillie 

 exposed six 30 by 30 inch plates during totality, with times ranging from 

 one-half a second to sixteen seconds, and three others were exposed by 

 him immediately after the third contact. 



At this writing only a part of the negatives taken have been devel- 

 oped. Their general quality maj' be inferred from the examples here 

 given, after due allowance for the great loss suffered by translation on 

 to paper, even with the best care.^ 



Plate I is a view taken with one of the smaller objectives (6 inches), 

 given here to afford the reader an idea of the general disposition of 

 the coronal light. The upper part is the vertex in the inverted held. 



Plate II is a portion of one of the great 15-inch circular images 

 obtained with the 135-foot focus telescope. It was obtained in the 

 great disk in the last exposure during totality of 8 seconds, showing 

 one of the principal prominences then on the sun's disk, with a dispo- 

 sition of the lower filaments near it. 



Plate III is a portion of the same set of plates, but taken with a 

 sixteen-second exposure. The part near the sun has, of course, been 



^ The illustrationa here are later than those provided for Science, and are repeated 

 here for the readers anew, though already given on pages 104, 105 of the Secretary's 

 report in this volume, where others will be found. 



