Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The business world is now in possession of many thoroughly established laws and principles for the manufacture of goods, for their preservation and transportation; for the best utilization of tools and equipment; for the generation of power, and for numer ous processes connected with the handling of material things. The physical sciences, such as physics and chemistry, have made their contributions and the business world has profited thereby and has been enabled to bring about this revolution.