When light strikes a surface coated with certain silver salts, these salts darken. The coated surface, when developed, becomes a negative.
planets
Alaska
dressing
economical
herd
Anglo-Saxon
yell
middle-class
alienation
sampling
refund
HYPOTHALAMIC
foams
Skyros
Bobbie
Deegan
MERGER
JAIL
saving
Springs
associate
startled
November
judges
questioning
speeches
inspection
acceptable
Detroit
displayed
cope
procurement
colonial
Socialist
Johnston
hesitated
launched
crises
Michigan
Wagner
submitted
forming
Rico
surrounded
keeps
