s is an implement for
grubbing and digging. Gift of Veikko Jarvis, Negaune, Michigan.

218. Fodder Cutter, 1872. 1960. This hand-cranked machine could cut all
kinds of fodder--hay, straw, and corn stalks--with ease and rapidity.
Called the "Improved Baldwins American," it was patented in 1867 and
1872. Gift of Thomas W. Bein, Bethesda, Maryland.

219. Oliver Chilled Plow, 20th century. 1960. Steel share, moldboard,
and coulter, with wooden beam, frame, and handles. Gift of Oliver
Corporation, South Bend, Indiana.

[Illustration: Figure 19.--Hart-Parr tractor of 1903, the third in line
of the first commercial tractors. (Catalog No. 220.)]

220. Hart-Parr Tractor, 1903. USNM 230442; 1960. The third internal
combustion tractor built by the company founded earlier by Charles
Hart and Charles Parr. The Hart-Parr tractor could pull gangs of plows
or drive large threshers. Oil circulating through the pipes in the
square stack cooled the engine. Gift of Oliver Corporation, South Bend,
Indiana.

221. Corn Grinder, about 1890. USNM 233465; 1960. This iron corn grinder
has "#17" printed on the grease caps of the axle. Gift of Walter A.
Hitchcock, Warrenton, Virginia.

222. Cider Mill and Press, late 19th or early 20th century. USNM 234465;
1960. This wooden-frame mill has iron parts, with a feeder-trough and
two tubes for draining the apple cider. It was operated by means of a
hand crank. Gift of Walter A. Hitchcock, Warrenton, Virginia.

223. Model of John Deere Plow, 1960. Received in 1961. An example of a
typical plow of the 1960s. Gift of John Deere Company, Moline, Illinois.

224. Model of John Deere Tractor, 1960. Received in 1961. An example of
a typical tractor of the period. Gift of John Deere Company, Moline,
Illinois.

225. Sample Fertilizers, 1960. USNM 238503; 1961. Samples of 22 types of
fertilizers in common use at the time. Gift of Dr. John B. Blake,
Washington, D. C.

226. Sample Fertilizers, 1960. USNM 238503; 1961. Samples of six types
of fertilizer in common use at the time. Gift of Dr. John B. Blake,
Washington, D. C.

227. Sample Fertilizers, 1960. USNM 238503; 1961. Samples of eight types
of fertilizer in common use at the time. Gift of Dr. John B. Blake,
Washington, D. C.

228. Sample Fertilizers, 1960. USNM 238503; 1961. Samples of six types
of fertilizer in common use at the time. Gift of Dr. John B. Blake,
Washington, D. C.

229. Sample Fertilizers, 1960. USNM 238503; 1961. Samples of th