"Persons can do few more silly or injurious
things than to sprinkle salt upon snow before their doors. The result is to
change dry snow or ice at the temperature of 32°, to brine at 0°. So low a
temperature affecting the feet of passengers is a prolific source of colds. If,
then, any one does sprinkle salt upon snow in the street, he ought to feel it a
matter of conscience to sweep it away immediately."
John Timb’s Manual of Domestic Economy.London: 1857