GLASS-MAKING. 



165 



Alongside of the cutter's wheel one sees a corner of the atelier 

 devoted to a species of cutting in miniature, which goes under 

 the name of engraving. The cutting instrument is a small cop- 

 per disk, sometimes as tiny as a dentist's tool, and sometimes sev- 

 eral inches in diameter. It is mounted with its axis horizontal, 

 and is made to rotate very rapidly. The cutting is lone under- 



pin. 5.— The Printed Designs, ready for Transference to the Glass, in the Etching 



Process. 



hand, instead of overhand, as in the former operation, which 

 means, in the language of the outside world, that the article to he 

 engraved is brought into contact with the rotating disk from be- 

 neath, instead of being pressed against its upper surface. The 

 disk is supplied with a mixture of emery and oil. This is the real 

 cutting agent ; the disk simply applies it. In almost all cases the 

 work is done solely by the eye, without any guiding lines what- 



