Most of last season's flies, having completed their life cycle are dead.; but those hatched late have laid their eggs in a favorable place for incubation in the early spring and will survive the winter unless disposed of. These eggs will hatch out during the winter in an even temperature.

These Winter Flies Will Become the Progenitors of Next Summer's Countless Billions!

At the first approach of cold weather, the flies seek warmth and protection in houses and stables. From cellar to garret, they hide in nooks and corners. Keep them out. If any succeed in getting in, kill them. Swat every one that shows itself, and be sure to burn their bodies.

Don't trust the cold to kill them. Don't assume that they are dead when you find them lying on floors or window sills in unused rooms. They are "playing possum" and will revive when the temperature rises.

Clean up the house and give special attention to every out-of-the-way place where flies may lurk.

Make sure that there is nothing left which may harbor their eggs.

The reduction in the number of house-flies this year has been noticed by almost all observers. This reduction has been most striking in households, in restaurants and in buildings where flies generally congregate. It is believed to be in great measure due to the active campaign against the winter fly, and to the vigilance of the tidy housewife in cleaning up and destroying the "hold-over" in the Spring.

One Fly that Survives the Winter Will Become the Parent

of Hundreds of Millions Next Summer!

ISSUED BY THE

Committee on Pollution and Sewerage

THE MERCHANTS' ASSOCIATION OF NEW YORK