Smithsonian Report, 1914.—Hooper. 
Fi@. 25.—CROMPTON’S MULE. 
(Bolton Museum.) 
Fig. 26.—MODERN SPINNING MULE. 
(Dobson & Barlow, Ltd.) 
=) 
Fi@. 27.—RING-SPINNING MACHINE. 
(Dobson & Barlow, Ltd.) 
PPATES (fe 
