Imagine a plain strewn with 35,000 corpses and two million men and women crying out under the pain of severe lacerations, burns, cuts, bruises, dislocations and fractures! Imagine the horrible sight of so many human beings with limbs torn into shreds, with faces having empty eye-holes, with breasts heaving from the effect of poisonous gases! If such numbers of men and women were killed and wounded in one day at one place, the whole world would be terrified, and register the day as the most dreadful in history. But as these losses extend over a whole year and a large territory, our nation takes only slight notice of them, hardly thinking of the fact, that these immense losses and sufferings are terrible realities, which affect the economic wealth of our nation as a whole in a very serious way. These conditions are the more deplorable as the majority of such accidents could be avoided by intelligent and rational methods, as is done in other civilized countries, where the possibilities for successful prevention of accidents have been clearly demonstrated. Granting that many of such industrial accidents are the result of ignorance, reckless indifference or carelessness, the fact remains that much that could be done in our country for the protection of working people is neglected. When in Europe with the increase of industries the number of accidents and “professional diseases” swelled in proportion, some philanthropists and economists, interested in the welfare of their fellow-citizens and convinced that every life saved is a national asset, became alarmed and searched for means to prevent such calamities. When in 1855 the first World’s Exposition was held at Paris, it had a special department in which were exhibited inventions for the safety of working people. Later on a permanent “Musée social” was established. Since then similar institutions have been opened in Berlin, Munich, Vienna, Amsterdam, Brussels, Zurich, Copenhagen, Stockholm, Budapest, Milan, Moscow, and several other places. These museums contain the latest and most select inventions for the restriction of accidents and in the interest of industrial hygiene. And as all exhibits are arranged in separate groups according to the various professions, every manufacturer and every working man and woman can inform himself without loss of time about all new inventions relating to his special trade. Perhaps the most comprehensive and most scientific of these museums is that of Charlottenburg, a suburb of Berlin. Its wonderfully interesting character is evident from the moment one enters the magnificent building, which occupies a whole city block. There are long rows of figures equipped with the various types of masks and helmets used by miners, divers, fire-fighters, and laborers, working in rooms filled with poisonous gases, dust, or irrespirable smoke. There are all the implements and attachments for the protection of persons working on men-killing machines.