In a recent test made at the suggestion and expense of the various manufacturers of cartridges, it was demonstrated that cartridges can be burned in a fire without danger to those standing near. As the shell of the cartridge is not confined, the force of the exploding powder tears the shell open instead of throwing the bullet, and these pieces of light shell will not produce serious injuries. The cartridges explode only one at a time instead of simultaneously, so that it is a continual popping instead of a large explosion. in the test, firemen were able to work within 20 feet of where the cartridges were burning without danger or inconvenience.