50 Scientific Proceedings, Royal Dublin Society. 



About this time the shadow appeared somewhat the shape 

 shown in figure 3, the curvature of its edge increasing as it ap- 

 proached the moon's limb ; but no irregularity could be detected 

 in the telescope. 



As the eclipse advanced the redness increased, and during the 

 total phase the surface appeared more like red-hot iron than copper. 

 At the middle of the eclipse the illumination appeared nearly 

 uniform, or darkening slightly towards the centre, except over the 

 dark plains, where the colour was deeper. 



At ll h 6 m 25 s a meteor crossed the disc of the moon a little to 

 the south of Plato, the position angle of its path being about 250°. 



As the shadow passed off the moon, its appearance and that of 

 the surface were very similar to what they had been in the corre- 

 sponding phase before totality. "While this was taking place I 

 paid particular attention to the outline of the shadow, with a view 

 to noting any irregularities which might occur in it. 



Once or twice an appearance very like a protuberance pre- 

 sented itself, but always where the shadow crossed the grey plains, 

 chiefly at the Mare Serenetatis and the Mare Tranquilitatis. At 

 these spots the darkening of the surface, in immediate proximity 

 to the edge of the shadow, had the effect of making the latter 

 appear to project beyond the regular curve bounding it. But, as 

 the shadow passed on, the protuberance vanished, or reappeared 

 in another place, according to the nature of the surface where it 

 happened to fall. 



Throughout the eclipse the redness was very marked, and in 

 striking contrast to the grey colour which the surface presented in 

 the eclipse of 1884. During totality, too, the illumination was 

 much more intense than on the former occasion, and at no time 

 did the obscured limb disappear wholly from view in the telescope, 

 as was the case, except during the total phase, in the eclipse of 

 1884. 



