A German-language technical article from 1927 on blending raw cotton before spinning. It explains the purposes and rules of mixing, the opening of bales, the bale breaker (Ballenzausler), and how long mixing bins (Stöcke) are stored. It compares mechanical conveying with slat conveyor belts against pneumatic filling, including the Dobson suction arrangement with a sieve-drum distributor. Fiber mixes for different yarn counts are listed, and several diagrams of mixing-room installations are included. The text ends with "Fortsetzung folgt" (to be continued).