I was a little doubtful about the propriety of going to the Mammoth Cave without a gentleman escort, but if two ladies travel alone they must have the courage of men.
I saw, in looking over Cooper, elements of a comet of 1825 which resemble what I get out for this, from my own observations, but I cannot rely upon my own.
I made observations for three hours last night, and am almost ill to-day from fatigue; still I have worked all day, trying to reduce the places, and mean to work hard again to-night.