kno\vlp:dge. 



Jani'aRV. 1915. 



Figure 10. The Washing Machine. 



FlGi'Ri: 11. One of the Sorters. 



Fniiii t'l">f'>H''''t'^' I'liidly lent hy the l-Sitniui liuhy .l/'/u's. l.nintcil. 



