260                                             BOOK VII. The other method of making needles is as follows :—
	So much for this. Perhaps I have used more words than those most highly skilled in the art may require, but it is necessary for the understanding of these matters. I will now speak of the weights, of which I have frequently made mention. Among mining people these are of two kinds, that is, the greater weights and the lesser weights. The centumpendium is the first and largest weight, and of