Wise managers, if not misled by speculation in stocks, care more for enlarging traffic than for immediate returns upon a smaller bulk, because the bulk of profit is greater. A good illustration of development [pg 114] of a special traffic is found in the milk trains running two hundred or three hundred miles to supply the city of New York. The railroads are compelled by the needs of the traffic to carry the milk cheaply enough to prevent its being made into butter and cheese. Laws regulating this charge are effective, because such a necessity exists in the nature of the case.
Weights and measures.—Another important growth in the machinery of trade is found in standards of quantity,—weights and measures of every kind. It is scarcely possible to realize the uncertainty of exchange without exact weights and measures. The story of the Indian trader who bought furs by weight, putting his hand upon the scales for one weight and his foot for its double, illustrates how uncertain such judgments of quantity may be without system. The present names of weights and measures indicate their origin in similar ways.
Measures have usually been connected with some part of the body: as “finger,” used one way in measuring the load of a gun and another on a stocking; “hand,” still used in measuring the height of horses; “span,” once considered sufficiently definite for any measurement; “foot,” now made to conform to an accurate system; and “pace,” still used in many communities. Connected with the arm, are “cubit” and “yard.” Many ladies still measure their dress goods by arm's lengths. For small measures, “grain” and “barley-corn,” still used as names, indicate dependence upon average quantity in articles of general growth.
Today all civilized governments settle upon a definite [pg 115] system of measures and weights, all accurately connected with each other and with some precise dimension in nature supposed to be invariable. Our common yard is distinctly associated with a pendulum vibrating seconds; and in the great decimal system, adopted by most countries in Europe, and likely to be reached in all countries, the whole is connected with a measured meridian upon the earth's surface. Care is then taken to have standard measures and weights prepared in such a way as to be free from all effects of any change of temperature, and legal enactments distinctly define each measure and weight, actually punishing one for the crime of using false weights or measures. Units of quantity thus enter into all our calculations and form an essential basis of all exchange. Cheating in measure and weight grows less and less possible with this clear understanding of exact units. The New York Legislature has defined the size of fruit packages, and the Massachusetts poultry raisers ask a law requiring eggs to be sold by weight.
Metrical system.—If the whole world should unite on a single decimal system of measures and weights, like that now used in most of Europe, all would be gainers from the reduction of misunderstandings and miscalculations increasing the cost of exchange. The difficulty of adopting a new system arises chiefly from the absolute importance of any system and the unconscious use of that to which people are already accustomed, together with its application in a thousand unthought of ways to every tool and every rule. That the advantage of a uniform decimal system would more [pg 116] than balance the difficulty of change, no student of the subject now doubts. Some have estimated the saving at nearly one-half of the present clerk hire. Our government has already taken steps for such a change, though years may be required to accomplish it.
Standards of quality.—The machinery of exchange also involves standard units of quality, but these must vary with every different kind of commodity. Custom has given rise to all sorts of devices for expressing degrees of fineness, strength and hardness, as well as more delicate qualities of flavor and odor. Boards of Trade often establish offices of inspection with brands upon grains, flour, butter, pork, etc., and these become definite parts of a contract which the government rightly enforces. Private trade-marks and brands, if honestly used, become a prominent element in exchange. These are protected rightly by being filed with the government, which secures to the originator his sole use of such a proof of quality.
In some articles of trade, when a whole community is interested, the government goes further and undertakes inspection and branding by an official. This in most states applies to kerosene oil, first for public safety, but afterwards for protection of exchange. Laws regulating the quality of fertilizers are based upon the necessity of knowledge, that bargains may be fair; and in many parts of our country now the branding of ground feeds, with an analysis of their qualities, is deemed an essential of safe bargaining. The extent to which this effort to establish the certainty of qualities may need to be carried can be estimated by the recent [pg 117] agitation over adulterations of food products. All believe that, as buyers, they have a right to know the quality of what they buy. It is conceivable that markets may some time establish a system of terms, descriptive of qualities, almost as definite as weights and measures. All this contributes to fair competition in exchange.
Standards of value.—More important still in the machinery of exchange is a standard unit of value. We have seen that value in any article of commerce can be fixed in terms of any other article, but prices remain indefinite so long as there is want of universal appreciation or appraisal in essentially the same terms and ideas. The tendency toward definite prices in well understood units of value is as clearly perceptible in the progress of commerce as is the tendency toward definiteness in weights and measures.
In early ages almost any article of common use, so that its qualities might be generally understood, has served as a standard of value, in terms of which all wealth has been estimated. Communities engaged in grazing counted all their wealth by cattle. Homer's heroes wore armor valued in cattle, and early Roman coins bore the images of cattle, while the very name of Roman coins, pecunia, is supposed to have been derived from the name of the flock. Communities of fishermen for a long period have estimated wealth in dried fish. More mechanical peoples have used some article of manufacture, like nails in some Scottish villages and the country cloth of western Africa. Sometimes a single prime article of export has served the purpose, [pg 118] like tobacco in the colony of Virginia and dried hides on the plains of South America. In most of pioneer America the hunters' pelts have served the same purpose, the average “coonskin” having a value which all could understand. As communities became more wealthy the display of wealth in ornaments made of precious metals and in precious stones has led to the use of these as standards of value. American Indians used their wampum, and African tribes employed peculiar shells. But as commerce increased, embracing wider regions, gold and silver became the staple article of value everywhere, since these, so easily tested for purity, could have their value estimated definitely by weight. Thus the standard unit of value has been definitely connected with standard weights.
Coinage.—Gradually these weights, for greater ease of transfer and for clearer understanding of values, became the basis of coinage. The stamp of the coiner became a certificate of quality and quantity, and finally, as in the case of weights and measures, governments assumed the whole responsibility for fixing the weight and fineness of coins, and reduced all coinage to system, that every citizen might know the value of the unit in which he estimates any article of commerce.