1. The air chamber in this instrument is not dried fruit but a full goat skin bag , legs and all .

2. Chal is typically prepared by first souring camel milk in a skin bag or ceramic jar by adding previously soured milk.

3. An Ascus (plural asci; from Greek ἀσκός ảskós ' skin bag') is the sexual spore-bearing cell produced in ascomycete fungi

4. An ascus (plural Asci; from Greek ἀσκός ảskós 'skin bag') is the sexual spore-bearing cell produced in ascomycete fungi.Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division