There are many different kinds of businesses. We shall not attempt to consider any except the most common and fundamental. Some, like farming or mining, consist in bringing forth certain products from the ground. Such products are called raw materials, of which an example is wheat. Some raw materials are sold and used unchanged, but most of them go through the process of manufacture in order to be directly usable. The miller is an example of a manufacturer, because from wheat he makes flour. In this chapter we shall study the principles underlying manufacture.
The exercises do not by any means exhaust the subject. Each one is to be considered as a nucleus about which others are to be grouped. If you live in a manufacturing district, other subjects will easily suggest themselves. If you have studied Industrial History or Commercial Geography, you probably have in mind a number of topics for discussion. If you know but little about raw materials, read some of the books suggested in Exercise 257. At all events let your work be definite. Whatever statements you make be able to substantiate by an illustration of something that you have seen or heard or read.
Almost all the things we eat, wear, and use every day are manufactured articles. Each one of them requires its own particular process in the making, involving the necessity in most cases of complex and expensive machinery, of expert workmen, and of still more expert management. Take, for example, the shoes we wear, in the manufacture of which an amazing number of complicated machines and of expert workmen is necessary. According to the United States Department of Labor, men's rough shoes go through eighty-four distinct processes performed by skilled workmen and automatic machines. No less amazing is the amount of work turned out by these machines. It has been estimated that the McKay machine, which attaches the soles to the uppers, sews up in about one hour and a half one hundred pairs, an amount which it would take ninety-eight hours, or about eleven whole working days, to sew by hand.
Each manufacturing business has peculiarities, machinery, methods, and even a language of its own; sometimes men must spend years in the study of the technicalities of certain manufacturing businesses before they become expert in them. It is evident that we cannot take up any one of them here except in so far as the principles of one apply to all, and these can be set down only very briefly.