6 
SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE. 
- 221 
THE 
ORBIT AND PHENOMENA 
OF A 
METEORIC FIRE-BALL, 
SEEN JULY 20, 1860. 
BY 
JAMES II. COFFIN, LLP., 
PROFESSOR OF MATHEMATICS AND ASTRONOMY IN LAFAYETTE COLLEGE. 
[ACCEPTED FOR PUBLICATION, JULY 1868.]