H. C. Lewis—Zodiacal Light. 441 
visible objects in the heavens, and has thus escaped the atten- 
tion which it deserves. It may be described as an extremely 
faint zone of light, somewhat wider than the milky way, which, 
ike a narrow strip of gauze, is stretched across the sky along 
the zodiac from horizon to horizon, and which can be seen at 
seek out first the darkest places in the sky, shifting the eyes 
rapidly and continuously along the sky from north to south 
gegenschein. 
The width of the zodiacal band can only be very approxi- 
mately estimated. As generally seen, it has perhaps a width of 
about 12°. When low down toward the southern horizon, 
