A German-language technical article from 1927 on heddles (Litzen) for power looms, comparing thread (twine) heddles with wire and metal types. It describes knotted, looped, glass-, steel- and brass-eyed heddles, round and flat steel wire heddles, and movable "Rumor" heddles. It weighs durability, cost, warp density and suitability for fine yarns, silk and damask weaving. The text ends with "to be continued", so it is the first part of a series.