increased in size and brilliancy ; it resembled fire ; the edges were not 

 well defined, especially towards tbe extremity, and it appeared to me to 

 be surrounded by vapour, which was more perceptible towards the 

 extremity. It occupied r33 intervals of my micrometer; the vdue of 

 the intervals being Im. ISCQs., gives to this an angle Im. 1509s. x 

 1-33 = Im. 40-92s., or the enormous height of upwards of 47,200 miles, 

 equal to more than 5*9 times the earth's diameter. The last prominence 

 I observed, was situated a little above the one just described, and on the 

 same limb : it also resembled fire, its edges were better defined, but in 

 size it was inferior to the two last. 



The corona which was formed at the moment of total obscuration, 

 shone with a feeble light, equal perhaps to about one-third that of the 

 full moon ; Fig. 4 gives a representation of it. The light was divided 

 by radial lines, and presented the appearance of brushes of luminous 

 rays shot from behind the moon, it was brightest next to the edge, and 

 decreased in intensity as it diverged, until it was lost-in the surrounding 

 darkness at a distance of about one-third of the moon's diameter from 

 its edge. I was unable to observe whether it was concentric with the 

 sun or moon. 



On withdrawing my eye from the telescope, the scene around was 

 awful in the extreme, the opposite pine-covered hill had assumed a black 

 colour ; the whole face of the country appeai'ed supernaturally altered ; 

 words would fail to describe it or my ovm feelings on the occasion — it was 

 a moment of intense excitement. Venus was distinctly visible ; I saw no 

 other planets or stars, in consequence of the thin film of clouds I have 

 before alluded to. The northern horizon, to an altitude of about ten 

 degrees, was clear, and resembled the eastern sky about half-an-hour 

 before day-break. The largest of the red prominences was distinctly 

 visible to the naked eye ; it was likewise seen by a fiiend at Gothenborg. 

 I also observed indications of the others with the unassisted eye. The 

 corona was likewise visible, but owing to the state of the sky, it was not 

 so clearly defined as when seen through a telescope. 



Having taken a rapid survey of the general phenomena, I applied 

 my eye again to the telescope a few seconds before the re-appearance of 

 the light. The first rays extinguished the corona and red prominences, 

 and rendered the immediate protection of the eye with a dark glass 

 necessary. 



The computed duration of the total obsciu:ation, on the central line 

 opposite to Trollhatten, was 3m. 2ls. ; its actual duration at TroUhatten, 

 as observed by Mr. Lassell, was 3m. 19-2s. ; it was a period so fraught with 

 interest, and so much had to be seen in this brief interval, that it 

 appeared to pass away in a few seconds, giving time for a general survey 



