Show SLOW POWDER it wt was once secretly Hec by ier ninny slow burning powder was first maile made in germany and was first called cocoa powder because it resembled in color and general appearance a cake of chocolate saya says st nicholis ita its method of manufacture waa was apt secret but other countries analyzed anal zed the grains and soon learned to make it even better than germany it Is made partly by changing the proportions of the ing ingredients re making them about 79 per cent wilt peter 3 per cent sulphur ind and 18 per cent charcoal thua thus airo alfo giving the powder its ro rullar cullar color tins iaus there arose a division of gunpowder into quick and alow slow burning powder it wa not alone necessary to maie make a which would burn more slowly but it if possible to make one burn so that more gas would be forming when the shot got near the muzzle than waa was forming when it started from the breech because there la Is more room behind the shot when it nears the muzzle and it therefore takes more gas to keep up the same pressure against its base to this and to make the grains lie so that there should be spaces evenly distributed among them to allow the flame to reah every grain at once causing all of them to begin running together grains were made of shapes and eich shape haq tried to see how ne irl it gave the desired results thus there have been used round grillis square grains hexagonal grain 4 cylindrical grains and prismatic grains of 0 course it Is to make a grain which will lave bave l ave more and more surface to burn he ahe smaller it gets so the best result which hog hu thus far been obtained Is only an approach to it and this Is obtained with a hexagonal and prismatic train about one inch high and an inch and a halt half in diameter with a hole bole or leutral holes through it |