VI. Spectroscopic observations of the sun.—No. VI

The weather lately has been fine enough and the sun high enough during my available observation-time to enable me to resume work. The weather lately has been fine enough and the sun high enough during my available observation-time to enable me to resume work. The crop of new facts is not very large, not so large as it would have been had I been working with a strip of the sun, say fifty miles or a hundred miles wide, instead of one considerably over a thousand—indeed, nearer two thousand in width; but in addition to the new facts obtained, I have ery largely strengthened my former observations, so that the many hours have spent in watching phenomena, now .perfectly familiar to me, have ot been absolutely lost.