Note 301 — Chapter VII · THE TRIBAL SYSTEM (continued).

See the tract 'Crith Gablach.' Brehon Laws, iv. pp. 300 et seq. One grade has 'a fourth part of a ploughing apparatus, i.e. an ox, a plough-straw, a goad, and a bridle' (p. 307); another 'half the means of ploughing' (p. 309); another 'a perfect plough' (p. 311); and so on. And the size of their respective houses and the amount of their food-rent is graduated also according to their rank in the tribal hierarchy. There is a reference to 'tillage in common' in the 'Senchus Mor.' Brehon Laws, iii. p. 17.