The initial movement of the glass-blower is to dip a hollow iron rod or tube, about five feet long, through the _bocca_, into one of the crucibles containing the melted glass. Having collected at the end of the tube a sufficient quantity of material for the article he is about to fashion--a drinking-glass, finger-glass, jug, or whatever it may be (which requires, perhaps, two or three dips according to the quantity he wants), he withdraws the tube, and holds it perpendicularly for a few seconds with the heated mass downward, till the fluid drops and lengthens by its own momentum beyond the end of the tube. He then quickly raises it, and rolls it on a smooth horizontal plate till it acquires a cylindrical form. When he has got it into this shape, he applies his mouth to the opposite end of the tube, and blows into the heated mass which swiftly becomes distended into a sphere. But as the globe thus obtained is not rendered sufficiently thin for his purpose by a single blowing, he reheats it by holding it within the furnace, and then blows again, repeating the operation till he brings it to the desiderated size and consistency. Thus prepared, he swings it in the air like a pendulum, or twirls it round and round rapidly, according to the elongated or circular form he requires, the molten particles obeying the tendency of the force and motion employed. Having advanced to this stage, and the mass being ready for fashioning, a new instrument is brought to bear upon it. This is a small, solid, round iron rod, called the pontil, upon one end of which a lesser portion of material has been collected by another workman, and this portion being applied to the extremity of the globe already formed rapidly adheres to it. The whole is now detached from the tube, or blowpipe, by simply damping the point of contact, which causes the glass to crack, so that a stroke upon the tube separates it safely, leaving a small hole in the globe where the tube had originally entered.