Soft Liquid-Like 'Wads' of Glass

Sometime near the year 100 BC, Phoenicians learned how to make glass in a manner that was inexpensive and easy. They learned to blow glass! These are the steps they followed:
-Place a wad of hot glass onto the end of a long metal pipe.
-Blow air through the pipe as if blowing up a balloon. (The air makes the blob of glass blow up, just like a balloon.)
-Shape the glass with a metal stick as you blow.
Which section from Benson's passage combines MOST CLOSELY with the information from Soft Liquid-Like 'Wads' of Glass?