Alongside of the merchant gilds, which had been associated with the growth of commerce and the rise of towns, were other guilds connected with the growth of industry, which retained their importance long after 1500. These were the craft gilds. [Footnote: The craft gild was also called a company, or a mistery, or _métier_ (French), or _Zunft_ (German).] Springing into prominence in the thirteenth and fourteenth centuries, the craft gild sometimes, as in Germany, voiced a popular revolt against corrupt and oligarchical merchant gilds, and sometimes most frequently so in England--worked quite harmoniously with the merchant gild, to which its own members belonged. In common with the merchant gild, the craft gild had religious and social aspects, and like the merchant gild it insisted on righteous dealings; but unlike the merchant gild it was composed of men in a single industry, and it controlled in detail the manufacture as well as the marketing of commodities. There were bakers' gilds, brewers' gilds, smiths' gilds, saddlers' gilds, shoemakers' gilds, weavers' gilds, tailors' gilds, tanners' gilds, even gilds of masters of arts who constituted the teaching staff of colleges and universities. When to-day we speak of a boy "serving his apprenticeship" in a trade, we seldom reflect that the expression is derived from a practice of the medieval craft gilds, a practice which survived after the gilds were extinct. Apprenticeship was designed to make sure that recruits to the trade were properly trained. The apprentice was usually selected as a boy by a master-workman and indentured--that is, bound to work several years without wages, while living at the master's house. After the expiration of this period of apprenticeship, during which he had learned his trade thoroughly, the youth became a "journeyman," and worked for wages, until he should finally receive admission to the gild as a master, with the right to set up his own little shop, with apprentices and journeymen of his own, and to sell his wares directly to those who used them. This restriction of membership was not the only way in which the trade was supervised. The gild had rules specifying the quality of materials to be used and often, likewise, the methods of manufacture; it might prohibit night-work, and it usually fixed a "fair price" at which goods were to be sold. By means of such provisions, enforced by wardens or inspectors, the gild not only perpetuated the "good old way" of doing things, but guaranteed to the purchaser a thoroughly good article at a fair price. [Sidenote: Partial Decay of Craft Gilds]