DuPont (commercial)

A long-known chemical discovered during the war to be a better rat poison. Now it is available in branded compounds for your use. Anvil is so powerful that a few ten thousandths of an ounce will kill a rat.

It is easy to use, in a bait, or as a tracking powder. While anvil is a special poison for the common rat, and is not as dangerous as most rat poisons, it is a poison, and pets and animals should be kept away from it.

A local dealer probably sells a rat-wise in containing Amzu, one of the Duponts company's better things for better living through chemistry. As a result of long continuing research in the field of commercial explosives, the Dupont company today manufactures more than 200 different formulations of dynamite, as well as other explosives, blasting supplies and accessories.

Research has also brought the light new and more efficient ways of using explosives, including a new and better way to fire them. The DuPont Blasting Timer It is now known that in some types of blasting, better results are obtained when one big blast is divided into a number of little ones, fired with almost unbelievable accuracy, a few thousands

of a second apart. The new depart invention, the DuPont blasting timer, detonates blasts in just this way. It looks like a portable radio inside the box, cams so delicately machined that they operate with greater accuracy than a fine stopwatch, clothes, switches, but fire the shots one after another.

In developing natural resources such as coal and other minerals, blasting must occasionally be carried out near residential and business districts. Here the timer is of service because it reduces the vibration of the ground. The DuPont timer also makes delays shooting even safer than before, providing an accurate means of firing the charges without using electric