230 GOODYEAR ON GUM-ELASTIC. 



TRACES. 



These are manufactured at the factories only, and are made of 

 caoutchouc harness leather, with the buckle-holes stayed in the 

 same way as the elastic straps before described. There is, per- 

 haps, no article of gum-elastic, or any part of gum-elastic harness, 

 that is made with so great a saving of labor as the traces. This 

 economy of labor is fully demonstrated by the fact, that one girl 

 will make up twenty pairs of gum-elastic traces per day, while 

 it is a day's work for a journeyman saddler to stitch a single 

 pair of traces made of animal leather. See plate xxv., fig. 12. 



UEINS. 



The round parts of these are made of caoutchouc harness 

 leather. The hand-rein is made of the same material, either 

 napped or covered with a light woven fabric. 



