Issue 13 of Ciba Review (September 1938) on the emblems of medieval and later trade guilds, with emphasis on textile trades such as weavers, dyers, wool and silk guilds. G. De Francesco surveys guild symbolism, seals, banners, drinking vessels, coffin plates, stained glass, triptychs and hostel signs from Florence, Prague, Basle and other cities. Further articles treat the painted emblems of the Venetian scuole, artistic trade marks and labels of Italian and Dutch silk and cloth makers, English livery company emblems and trade cards, and guild badges of weavers and dyers in the Low Countries. The issue also includes Ciba dye advertisements, a page of Oriental dye labels and a short technical note on oxygen in processing vegetable fibres.