These two blends blend cotton and wool.  I'm not exactly sure how they were
prepared, but they did not spin as well as either fiber by itself.  The wool seemed to
take away strength from the cotton.  These two blends are Scythian Lamb (White
Cotton and Wool) and Golden Fleece (Brown Cotton and Wool).  There is a third
blend, Silver Lining, which I have not tried yet, available at New World Textiles.
Cotton/Wool Blends