The bricklayer, the joiner, and the carpenter (VII, 2-3a), inasmuch as they work on the premises of their employer, receive their “keep” as well as a fixed wage, while the knife-grinder and the tailor (VII, 33, 42) work in their own shops, and naturally have their meals at home. The silk-weaver (XX, 9) and the linen-weaver (XXI, 5) have their “keep” also, which seems to indicate that private houses had their own looms, which is quite in harmony with the practices of our fathers. The carpenter and joiner are paid by the day, the teacher by the month, the knife-grinder, the tailor, the barber (VII, 22) by the piece, and the coppersmith (VII, 24a-27) according to the amount of metal which he uses. Whether the difference between the prices of shoes for the patrician, the senator, and the knight (IX, 7-9) represents a difference in the cost of making the three kinds, or is a tax put on the different orders of nobility, cannot be determined. The high prices set on silk and wool dyed with purple (XXIV) correspond to the pre-eminent position of that imperial color in ancient times. The tables which the edict contains call our attention to certain striking differences between ancient and modern industrial and economic conditions. Of course the list of wage-earners is incomplete. The inscriptions which the trades guilds have left us record many occupations which are not mentioned here, but in them and in these lists we miss any reference to large groups of men who hold a prominent place in our modern industrial reports—I mean men working in printing-offices, factories, foundries,