we may see people sons of arab men and women who have fallen into khorasan and we have no doubt that they are barbarians from the villages. this is found in everything. we may see the locusts of the herbs and basil and their worms green and we see the lice of a young mans head black and we see them white when his head turns white and we see them red when they are dyed.
وقد نرى الناس أبناء الأعراب والأعرابيات الذين وقعوا إلى خراسان فلا نشك  أنهم علوج القرى. وهذا موجود في كل شيء. وقد نرى جراد البقل والريحان وديدانهما خضرا، ونرى قمل رأس الشاب سودا، ونراها إذا ابيض رأسه بيضا، ونراها إذا خضبت حمرا.