288 Astronomy and Meteorology. 
sunlight, for they continued visible with the telescope at least 108 longer. 
s near as it was posible to estimate, the breadth of each spectrum circle 
bout two minutes. e green colors were not darker than the tint 
seen in the kaleidoscope.”* : 
3. Observations made during the Total Eclipse of 18th July, 1860, 
on the summit of Mount Saint-Michel, in the Desert of Palmas, Spain ; 
diameter between the outer wires—the two intermediate wires were 
slightly inclined, subtending 1/30" at the narrower, and 2! 30” at the 
arger angle; an arrangement designed to aid in obtaining a more exact 
estimate of the protuberances. The whole micrometer revolved on. 
4 : uded. This ims 
mounted equatorially, was very stable, and had been adjusted the day 
ore. 
_* Up to this date, Sept. 7th, the party sent to the Cumberland House, Britis 
Columbia, have not bee dank Peat a gay yaa 
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