Show ad M 1 U ll 11 r aft the magic of chemistry which makes a compound of value for one purpose in i n war and another in peace deac d told in eight sketches Sk etchet by JOHN RAYMOND no VII WAR AND PEACE the art of warfare is as old as the race itself warfare at first consisted co I 1 isi s ted of throwing w i ng tones stones at the enemy or hitting hi him wath with a club chab the art slowly progressed the catapult was used for hurling good sized rocks and the bow and arrow served its purpose in standoff stand off combats thus it went for many centuries warfare consisted of ninety per cent hand to hand work and perhaps laps ten per cent of shooting from a distance along about 1345 an old monk found that gunpowder when properly ignited pave gave vent to a pretty good sized noise england and france were at war and the new invention was tried out at the battle of crecy with the result that ti the he horses became frightened at the noise like thunder losses were heavy and gunpowder was voted a success warfare didn dian t advance greatly for centuries to be sure many improve merits ments in guns and explosives were made but the basic principle remained the ile only way to put an enem enemy out of commission commission was to hit him with a projectile on the morning of april 22 1915 warfare was revolutionized when a cloud of chlorine gas was w as sent se nt over the allied trenches wiping bipin g out whole chiments egi merits this experiment proved so 0 successful that the war opening as t did per cent explosive ended SS per cent chemical these war gases are of particular interest to the student of chemistry because of the variety of uses to which they are put in times of peace phosgene one of the most important of the war gases has found a wider use in in peace time than tha n any of the others ers it finds its most direct application I 1 in the manufacture of a large line ine of dyes including 47 ing blue pink vio let yellow and r gre green e n it Is used tl in the manufacture of Cour narin one of the essentials in making synthetic vanilla and perfume toilet soaps it is also used in killing rodents thus aiding in preventing the spread of bubonic plague pho gene finds another application in freeing ing certain sands used in the manu manufacture facture of optical glass from traces of iron benz benzoate was required for weatherproofing weather proofing and firer fireproofing efing aeroplane wings wing in the war 1 it t now lv finds an all interesting use in making synthetic perfumes and synthetic drugs was supplied to we fr french elich high commission as an explosive PI josiv i e in peace time we find jt it used in making dyes including the american new sulphur black this dye is is interesting because it finds a wide application in dyeing such articles as 25 hosiery and was one of the dyes that germany was confident america could not make it is gratifying to learn from textile manufacturers that thai american sulphur black is at least M venty twenty per cent better than a any ny german sulphur black they have ever used chlorine was the first toxic used by the germans in peace milne tin it is used in the purificat purification ion of water the bleach bleaching i ng of paper and c koths cloths and an in the ma manufacture n af of a grea great t many dyes perfumes and antiseptics naphthalene Naptha lene was used in making giaki ngoun our wartime war time daylight signal rockets NOW it is used in making such beautiful dyes as indigo and orange from these few examples it will be readily seen why it is so simple a matter to convert a dye plant into a wartime war time production plant and why 40 de many other industries are directly uc pendent upon dyes fRe leased by be institute of american business new york |