nold Miles, Washington, D.
C.

169. Model of Manning Mower, 1831. USNM 230438; 1959. William Manning of
Plainfield, New Jersey, invented this mower in 1831. The cutter bar,
suggestive of Hussey's, has triangular knives which vibrate over long
fingers. Constructed by Office of Exhibits, Smithsonian Institution.

170. Model of Bailey Mower, 1822. USNM 230438; 1959. This mower,
invented in 1822 by Jeremiah Bailey of Pennsylvania, has a rotating disk
that serves as the cutter. The cutting disk, which can be raised to
avoid obstacles, is geared from the axle. Constructed by Office of
Exhibits, Smithsonian Institution.

171. Model of Gallic Reaper, first century A.D. USNM 230438; 1959. This
is a model of a reaper as described in use in Gaul in the first and
second centuries A.D. A donkey or an ox pushed the reaper through the
grain; the heads of the grain were ripped off by the blade and fell into
the box. Constructed by Office of Exhibits, Smithsonian Institution.

172. Model of Hussey Reaper, 1833. USNM 230438; 1959. The first Hussey
reapers were crude two-wheel mowers with a platform attached to the rear
right side of the machine. The sickle or cutter bar was made of a series
of triangular knives riveted to a flat bar that oscillated back and
forth between guard teeth. The action was initiated by means of a gear
mounted on the main axle. The raker stands on the platform to remove the
cut grain. Constructed by Office of Exhibits, Smithsonian Institution.

173. Model of Hussey Reaper, 1850. USNM 230438; 1959. This is a
one-eighth scale model of the Hussey reapers built between 1845 and
1850. Constructed by Office of Exhibits, Smithsonian Institution.

174. Model of Bell Reaper, 1828. USNM 230438; 1959. On this machine a
reel pressed the grain against the cutters and made it fall back on an
apron. The apron could be set to run in either direction to deposit the
cut grain at the side, out of the way of the machine on the next trip
around. The reaper was invented by the Reverend Patrick Bell, Carmyllie,
Scotland. The model was constructed by Office of Exhibits, Smithsonian
Institution.

175. Models of Landis Eclipse Thresher, 1907. USNM 230438; 1957.
Constructed by Office of Exhibits, Smithsonian Institution.

176. Model of New England Strong Plow, about 1780. USNM 230438; 1959.
Constructed by Office of Exhibits, Smithsonian Institution.

177. Model of Mahlon Smith Plow, about 1825-1840. USNM 230438; 1959.
Constructed