Entered Apprentices served their Masters in former times, and so should they in modern, with Freedom, Fervency and Zeal.  They are represented by chalk, charcoal and clay.  Because there is nothing freer than chalk, which upon the slightest touch leaves a trace behind; nothing more fervent than charcoal, to which, when properly lighted, even the most obdurate metals will yield; and nothing more zealous than clay, our mother earth, which is constantly employed for men's use, and is an emblem to remind us that as from it we came, so to it we must all return.