er initially to work which requires complete and accurate detail drawings to be made, and the assignments become increasingly complex as the ability to do work of an advanced engineering caliber is demonstrated. If the capacity to assume design responsibility is shown, then the direction of other engineers with less experience is given who in turn do the detailed engineering."The Graphic LanguageMany of the troubles of the world are caused by the fact that the various peoples do not understand one another. The infinite number of languages and dialects that contributed to this condition resulted from a lack of intercommunication of peoples widely separated in various parts of the world. Even today when communication is so greatly improved, the progress toward a world language is painfully slow, so slow, indeed, that we cannot foresee the time when it will be a fact.Although we have not been able to get together on a world language of words and sentences, there has actually been a universal language in use since the earliest times: the graphic language. The idea of communicating thoughts from one person to another by means of pictures occurred to even the earliest cave dwellers, and we have examples still in existence to prove it. These earliest men communicated orally, undoubtedly by grunts and other elementary sounds. However, when they wished to record an idea' they made pictures upon skins, stones, walls of caves or whatever materials they could find. The earliest forms of writing were through picture forms, such as the Egyptian hieroglyphics. Later these forms were simplified and became the abstract symbols used in our writing today. Thus, even the letter characters in present word languages have their basis in drawings.A drawing is a graphic representation of a real thing, an idea, or a proposed design for construction later. Drawings may take many forms, but the graphic method of representation is a basic natural form of co...