388 Key West Physical Notes. 
Art. XL.— Key West Physical Notes.—1. Zodiacal Light. 2. At 
mospheric Transparency. 3. Gulf Stream Cloud Bank. 4. 
Bands. 5, Northers. 6. Hurricanes. 7. Ventilation. 8. Yel- 
low Fever. 9. A Water Moonrise; by Major E. B. Hunt, 
Corps of Engineers, U.S. A. 
Some observations on physical phenomena, incidentally made 
by me during my period of duty at Key West, (1857-62,) may 
not be devoid of interest, and their discussion may have some 
scientific value. C 
1. Zodiacal Light—During the winter, and yee: in Feb 
i est a re 
red the 
mista- 
kably when Venus was not visible, and so late as to exclude 
the idea of twilight refractions as their cause. 
if shadows by zodiacal light have before been nc | 
aga corroborated my impressions, leaving no doubt that 
ut dimly outlined shadows, of readily observable darkness, ae 
1e Out with a clear lustre a ] 
rency.—There is a beauty in the sky a 
ail to impress even casual observers eS 
nd fullness of numbers 
