“Guilds or societies,” “in arti o in tribu.” “Arti” were craft or trade guilds, cf. Florio: “Arte . . . a whole company of any trade in any city or corporation town.” The guilds of Florence are most admirably described by Mr Edgcumbe Staley in his work on the subject (Methuen, 1906). Institutions of a somewhat similar character, called “artel,” exist in Russia to-day, cf. Sir Mackenzie Wallace’s “Russia,” ed. 1905: “The sons . . . were always during the working season members of an artel. In some of the larger towns there are artels of a much more complex kind— permanent associations, possessing large capital, and pecuniarily responsible for the acts of the individual members.” The word “artel,” despite its apparent similarity, has, Mr Aylmer Maude assures me, no connection with “ars” or “arte.” Its root is that of the verb “rotisya,” to bind oneself by an oath; and it is generally admitted to be only another form of “rota,” which now signifies a “regimental company.” In both words the underlying idea is that of a body of men united by an oath. “Tribu” were possibly gentile groups, united by common descent, and included individuals connected by marriage. Perhaps our words “sects” or “clans” would be most appropriate.